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rust-lightning

Composable Rust libraries for building Lightning wallets, nodes, and services.

BitcoinCryptographic librariesLightning NetworkNormal
Repository coverage

1655 commits in the local evidence base

Every captured commit receives deterministic security triage and a separate communication-quality score. Security candidates and broader second-pass signals receive full-patch Ollama analysis.

249security candidates223second-pass queue1517AI analyses
88commits · 30 days
195commits · 60 days
565commits · 180 days
1307commits · 365 days
Backfill bands
Aug 5 → Feb 6819 seen18 candidatesComplete
Feb 6 → Jun 6468 seen16 candidatesComplete
Jun 6 → Jul 6128 seen8 candidatesComplete
Jul 6 → Aug 561 seen3 candidatesComplete
Commit communication

Does the history explain itself?

Message quality measures whether a commit identifies its scope, purpose, rationale, testing, and supporting references. It does not change the security-severity score.

70/100 average clarity
470Strong · 80–100
830Adequate · 60–79
293Thin · 40–59
62Opaque · 0–39
3security candidates with opaque commit messaging
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Developer activity

Who is changing the project?

Public Git author strings; identities are not independently verified.

DeveloperCommitsCandidatesAnalyzedHigh riskMessage avg.
Elias Rohrer15315153667
Matt Corallo43452370574
Jeffrey Czyz19545182169
Wilmer Paulino15945155169
Leo Nash11613116162
Valentine Wallace14010135169
Vincenzo Palazzo11311183
Joost Jager16224162069
elnosh371331057
auto-pr-bot2478087
shaavan22622069
Carla Kirk-Cohen78366068
Analysis record

Published AI watches

Last scanned 29 minutes ago

Informational 19 AI analysisMessage 81 · Strong
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Merge PR 'tx-sync: Parallelize esplora status queries' (#4913)

This commit rewrites how a Lightning wallet talks to Esplora block-explorer servers so that many status checks happen in parallel instead of one at a time. It is a performance/refactoring change. There is no direct evidence in the commit t…

Concurrency/timing change in transaction confirmation logicNew inconsistency check preserved when a previously-confirmed tx is reported unconfirmedAdded defensive error path for missing pre-fetched block status
c303f515by Matt Corallo+140−371 file
No security note in commit
Low 30 AI analysisMessage 81 · Strong
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Merge PR 'Skip Electrum creator transaction downloads' (#4992)

This change stops the Electrum-based transaction sync client from downloading the very transaction that created an output it is watching. Previously, the client could request that transaction from Electrum, even though a transaction can ne…

Avoids unnecessary Electrum transaction.get requests for watched outputsReduces information disclosure to Electrum server about watched outpointsAdds regression test verifying request suppression
c36e50cbby Matt Corallo+142−02 files
No security note in commit
Low 44 AI analysisMessage 81 · Strong
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Merge PR 'Use preferred sPK of watched txn in electrum, not rand ones' (#4867)

This change improves how the Lightning Dev Kit's Electrum and Esplora transaction-sync clients track watched Bitcoin transactions. Previously, the code ignored the script pubkey (the 'address' associated with a transaction) supplied when r…

Previously ignored `script_pubkey` argument in `register_tx` for transaction watchersElectrum script-history queries previously used an arbitrary transaction output, which could be OP_RETURN and therefore unindexed by some Electrum serversNew logic prefers caller-supplied script pubkey and falls back to non-OP_RETURN outputs
bfe5ca89by tnull+52−243 files
No security note in commit
Low 33 AI analysisMessage 81 · Strong
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Merge PR 'Serialize transient Event variants; move persist decision into ChannelManager' (#4791)

This commit changes how LDK stores pending event notifications. It adds serialization support for several event types that previously were not fully saved to disk, and introduces a helper method so the code can decide which events are wort…

Data-loss prevention: previously non-round-trippable event variants are now fully serialized, avoiding accidental event loss when users serialize Event queues themselvesState-consistency hardening: ChannelManager now explicitly skips events that describe non-surviving restart state, preventing replay of stale eventsDefensive assertion: debug builds assert that every persisted event round-trips to Some(event), catching serialization mismatches
a0d4632eby Matt Corallo+694−818 files
No security note in commit
Informational 15 AI analysisMessage 81 · Strong
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Merge PR 'Document that funding signing events can go stale' (#4960)

This commit only adds documentation comments to two source files. It explains that certain funding-signing events can become stale if the underlying negotiation fails, and that callers may see specific harmless errors as a result. No code …

26eecf2dby Matt Corallo+15−02 files
No security note in commit
Informational 15 AI analysisMessage 100 · Strong
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Drop the honggfuzz version pin from the CI fuzz job

This commit removes a fixed-version pin for the honggfuzz fuzzing tool in a continuous-integration script. The project now uses the current release of honggfuzz instead of an older pinned version. There is no change to the actual Lightning…

4a1635efby auto-pr-bot+1−51 file
No security note in commit
Informational 15 AI analysisMessage 86 · Strong
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Run the CI fuzz job on the stable toolchain

This commit changes the Rust toolchain used in the continuous integration (CI) fuzzing job from a fixed older version (1.75) to the latest stable release. It is purely a build/test infrastructure change to fix a dependency compatibility is…

21c4ed2bby auto-pr-bot+3−32 files
No security note in commit
Informational 19 AI analysisMessage 91 · Strong
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Expose the dummy-hop tail constructor publicly

This commit makes a previously internal helper function public so that outside developers can build dummy-hop tails for blinded payment paths without recreating the logic themselves. It is an API usability change, not a fix for a known sec…

No security-relevant behavior change in the diffAPI visibility broadened from crate-public to publicCLTV expiry overflow check already present and unchanged
c5443353by auto-pr-bot+14−71 file
No security note in commit
Moderate 54 AI analysisMessage 100 · Strong
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Fail commitment sig verification without counterparty params

This change adds a safety check in a Bitcoin Lightning Network library (LDK). Previously, if the software tried to verify a peer's commitment signature before it had learned the peer's channel parameters, it could crash with a panic. Now i…

Defensive check added on peer-driven code path to prevent panicMissing counterparty_parameters could previously cause panic during commitment transaction constructionChannel closure returned instead of panic
de7ecc2fby auto-pr-bot+24−01 file
Vendor flagged security relevance
Informational 15 AI analysisMessage 100 · Strong
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Clarify the commitment validation failure message

This commit only changes the wording of an error message sent to peers when a commitment transaction fails validation. It replaces the vague phrase 'Failed to validate our commitment' with the clearer 'Received commitment failed validation…

3284a006by auto-pr-bot+11−114 files
No security note in commit
Moderate 61 AI analysisMessage 81 · Strong
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Merge PR 'Move holder commit sig checks to `InMemorySigner`' (#4885)

This commit moves the checks that validate a counterparty's signatures on the holder's commitment and HTLC transactions out of the general channel code and into the signer module (InMemorySigner). Previously, these signature checks were do…

Moved signature validation from channel state machine into signer moduleAdded new tests that corrupt signatures and verify rejectionChanged error message from 'Invalid commitment tx signature from peer' / 'Invalid funding_created signature from peer' to 'Failed to validate our commitment'
83f5ba55by Matt Corallo+626−31024 files
No security note in commit
Low 42 AI analysisMessage 86 · Strong
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Merge PR 'Drop stale splice signature on disconnect' (#4954)

This change fixes a Lightning channel splicing bug: when two peers temporarily disconnect during a splice, any half-finished signature the other side already sent is now discarded. Before the fix, that stale signature could be reused after…

State-invalidation bug in multi-step protocol (splice negotiation)Stale cryptographic signature not cleared on disconnectPotential reuse of old commitment state after reconnect
c9a77251by Matt Corallo+22−12 files
No security note in commit
Moderate 58 AI analysisMessage 73 · Adequate
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Drop stale splice signature on disconnect

This fix prevents a Lightning channel from being accidentally force-closed. During a splice (a way to resize a payment channel), one side's initial signature could be kept in memory after the peers disconnected. If the peers later reconnec…

State inconsistency: in-memory buffered message not cleared on disconnectDuplicate message processing after reconnectionForce-close consequence for active Lightning channel
71405b4bby Wilmer Paulino+22−12 files
Vendor flagged security relevance
Informational 20 AI analysisMessage 81 · Strong
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Merge PR 'offers: rename matches_invoice_signing_pubkey to key_can_sign_invoice' (#4942)

This commit is a simple rename of a public function from `matches_invoice_signing_pubkey` to `key_can_sign_invoice`, plus matching updates to its documentation, callers, tests, and changelog. No behavior changed. It is not a security fix.

a476cf92by Matt Corallo+13−133 files
No security note in commit
Informational 15 AI analysisMessage 73 · Adequate
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

offers: rename matches_invoice_signing_pubkey to key_can_sign_invoice

This commit is a simple rename of a function and its documentation from matches_invoice_signing_pubkey to key_can_sign_invoice. No logic, behavior, or security properties changed. It is a follow-up code-review naming cleanup.

388187caby Vincenzo Palazzo+13−133 files
No security note in commit
Informational 18 AI analysisMessage 81 · Strong
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Merge PR 'offers: add Offer::permits_invoice_signed_by' (#4884)

This commit adds a new public helper method, Offer::matches_invoice_signed_by (later renamed matches_invoice_signing_pubkey), that lets callers check whether an invoice signing key belongs to the recipient named by a BOLT 12 offer. It also…

Refactors existing BOLT 12 invoice-signing-pubkey validation into a reusable helperAdds public API to bind an invoice signing key to an offer recipientAdds unit tests for issuer-id vs. path-last-hop matching behavior
016af8f9by Matt Corallo+81−135 files
No security note in commit
Low 29 AI analysisMessage 85 · Strong
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Support retired TLV fields in object-constructing macros

This commit is a feature enhancement for LDK's internal serialization macros. It allows developers to mark old protocol fields as 'retired' (reserved but no longer used) in more places, so those type numbers cannot be accidentally reused. …

TLV type-number reservation mechanism extended to more macro-generated code pathsPrevents accidental reuse of retired protocol field type numbersAvoids UnknownRequiredFeature decode failures for obsolete even-type fields
6d7c2bdaby Jeffrey Czyz+120−222 files
No security note in commit
Informational 17 AI analysisMessage 91 · Strong
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Replace splice failure wire tests with a 0.2 downgrade test

This commit is a test-only cleanup in the Lightning Dev Kit (LDK) Rust codebase. It removes low-level byte-level tests for splice failure events and replaces them with a single cross-version test that actually loads a 0.2 node with seriali…

Cross-version serialization compatibility test addedRemoval of byte-level tests that could not detect real 0.2 mismatchesNo production code changes
80f2b44fby auto-pr-bot+95−2663 files
No security note in commit
Low 28 AI analysisMessage 98 · Strong
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Document duplicate HTLC handling on revoked commitments

This commit only adds a code comment explaining an existing quirk: if a revoked old channel transaction contains two identical-looking payment forwards and the other side claims both, the software may only claim one upstream while letting …

Behavioral quirk in revoked-commitment HTLC resolution documentedDuplicate (payment_hash, amount) HTLCs can map to the same upstream sourcePotential missed upstream preimage claim on second identical HTLC
c5bd8b11by auto-pr-bot+19−01 file
Vendor flagged security relevance
Moderate 60 AI analysisMessage 73 · Adequate
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Abort active splice RBF when prior candidate confirms

This commit fixes a state-handling bug in Lightning Dev Kit's splicing feature. When a user tries to speed up or replace a pending splice (an 'RBF' attempt) and the older splice transaction unexpectedly gets confirmed on-chain, the softwar…

State-conflict handling between confirmed splice candidate and active RBF negotiationStructured abort propagation through chain-event pathConditional abort based on holder signature progress to avoid unsafe cancellation
7587d2cdby Wilmer Paulino+623−424 files
No security note in commit
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AI review queuedAvoid panic when reorged claims cannot mergeby Matt Corallo · f1dc8487 · Aug 4, 2026 · 2 filesMessage 78 · AdequateModerate 57Details
Commit message · Matt Corallo

Avoid panic when reorged claims cannot merge

Previously, a deep reorg could resurrect an HTLC package at a height
where it was no longer mergeable with its surviving claim. This caused
`OnchainTxHandler::blocks_disconnected` to panic on an assertion.

When merging fails, we now preserve the resurrected package in
`locktimed_packages` so normal block processing registers and broadcasts
it as an independent claim. Add a regression test covering the reorg and
subsequent broadcast.

Thanks to Kyle W. Santiago for reporting this issue.

Co-authored-by: Elias Rohrer <dev@tnull.de>

78/100 · AdequateMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context✓ Mentions testing or verification
Why it was queued
fuzzing or regression evidencesecond-pass: broader security terminology
AI analysis · Moderate 57/100

This commit fixes a crash bug in the Lightning Dev Kit's on-chain transaction handler. During a deep blockchain reorganization, a previously settled HTLC claim could be 'resurrected' at a block height where it could no longer be combined with a surviving claim. The old code used an assertion that assumed merging would always succeed, so the node would panic and shut down. The fix checks whether merging is possible first; if not, it preserves the resurrected claim so it can be broadcast independently. A regression test reproduces the exact reorg scenario.

Security candidateUpdate crate repository links to forgejoby benthecarman · eb77676d · Aug 3, 2026 · 15 filesMessage 45 · ThinInformational 15Details
Commit message · benthecarman

Update crate repository links to forgejo

45/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component! No meaningful explanatory body
Why it was queued
seed or entropy pathsigning or wallet path
AI analysis · Informational 15/100

This commit simply updates the 'repository' web links in 15 package metadata files from GitHub to a self-hosted Forgejo instance. It does not change any program code, build logic, dependencies, or security behavior. There is no security issue here.

Lower-priorityAccount for message type prefix len in prevtx length enforcementby Wilmer Paulino · d29e1415 · Jul 31, 2026 · 1 fileMessage 73 · AdequateLow 45Details
Commit message · Wilmer Paulino

Account for message type prefix len in prevtx length enforcement

Lightning wire messages have a maximum size of 65535 bytes, which
already accounts for the required two-byte message type prefix. Our
`TxAddInput::prevtx` length enforcement relied solely on the
`serialized_length` of the message, which does not account for the
prefix.

73/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context
AI analysis · Low 45/100

This commit fixes a small but real accounting bug in how rust-lightning checks whether a previous transaction (prevtx) attached to a funding input will make the resulting Lightning wire message too large. The code previously compared the message body length against the 65,535-byte wire limit, but forgot to add the 2-byte message type prefix. That meant a prevtx could be accepted even though the final on-the-wire message would exceed the protocol's maximum size, which would likely cause the peer to reject or fail to parse the message. The fix adds those 2 bytes to the calculation and updates the test to hit the real boundary.

Security candidateRetransmit splice_locked for 0-conf channels missing tx_signaturesby Wilmer Paulino · 5434015b · Jul 30, 2026 · 2 filesMessage 73 · AdequateModerate 54Details
Commit message · Wilmer Paulino

Retransmit splice_locked for 0-conf channels missing tx_signatures

When a 0-conf channel successfully negotiates a 0-conf splice only for
one peer and a disconnection happens prior to the other peer receiving
`tx_signatures`, we'd previously fail to handle the inferred
`splice_locked` upon reconnection via the
`my_current_funding_locked_txid` TLV since the peer had not considered
the splice fully negotiated yet. In this case, an explicit
retransmission of `splice_locked` is required as per the BOLT-2
requirement:

> Each node:
> - If option_zeroconf has been negotiated:
> - SHOULD send splice_locked immediately after exchanging tx_signatures.

73/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context
Why it was queued
signing boundary
AI analysis · Moderate 54/100

This commit fixes a bug in the Lightning Dev Kit where, after a disconnection, a node could fail to retransmit a 'splice_locked' message to a peer that was still waiting for transaction signatures. Without this retransmission, the two peers could get stuck and not agree on the new channel funding, potentially leaving the channel unusable or in an inconsistent state. The fix ensures the required message is resent so both nodes converge correctly.

Lower-prioritybolt12: add pay_for_bolt12_invoice for externally-sourced invoicesby Alkamal01 · 5b80fe9c · Jul 30, 2026 · 6 filesMessage 83 · StrongLow 37Details
Commit message · Alkamal01

bolt12: add pay_for_bolt12_invoice for externally-sourced invoices

Adds a new pay_for_bolt12_invoice method that pays a BOLT 12 invoice
without requiring it to have been requested through LDK. Unlike the
existing send_payment_for_bolt12_invoice, this method:

- Does not verify that the invoice was previously requested by LDK.
- Accepts a caller-supplied payment_id (no deduplication by invoice).
- Supports an optional partial amount_msats for multi-payer MPP flows,
where multiple senders each contribute a portion of the invoice total.
The onion total_msat is always set to the full invoice amount so the
recipient can validate the MPP payment correctly.

Also adds OptionalBolt12PaymentParams and Bolt12PaymentError, and
deprecates send_payment_for_bolt12_invoice and
manually_handle_bolt12_invoices in favour of the new flow.

83/100 · StrongMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context✓ Mentions testing or verification
Why it was queued
defensive validation
AI analysis · Low 37/100

This commit adds a new API, pay_for_bolt12_invoice, that lets users pay a BOLT 12 invoice even if LDK did not originally request it. It is intended for advanced use cases like multi-sender payments and replaces an older, more restrictive API. The change itself is a feature addition with deprecation of old methods, not a fix for an active vulnerability. The main security consideration is that the new API places more responsibility on the caller to verify invoices and avoid duplicate payments; misuse could lead to paying an attacker’s invoice or double-paying, but the commit documents these risks clearly and adds validation for amounts and features.

Security candidateInclude to_self_delay size in DelayedPaymentOutput weight calculationby Matt Morehouse · e6652237 · Jul 28, 2026 · 3 filesMessage 90 · StrongLow 26Details
Commit message · Matt Morehouse

Include to_self_delay size in DelayedPaymentOutput weight calculation

SpendableOutputDescriptor::create_spendable_outputs_psbt estimated the
witness weight of a to_local (DelayedPaymentOutput) input using
MAX_WITNESS_LENGTH, which assumes the maximum 4-byte OP_CSV push of
to_self_delay in the redeemscript. The real push can be as small as 1
byte for small to_self_delays, causing the estimate to overshoot by up
to 3 WU. If this overshoot occurred in addition to a short signature,
the max-overshoot debug_assert in KeysManager::spend_spendable_outputs
would fail.

Add DelayedPaymentOutput::max_witness_length, which computes the witness
length from the descriptor's actual to_self_delay, and use it in place
of the MAX_WITNESS_LENGTH constant. This produces a more accurate
weight estimate so that the debug_assert in spend_spendable_outputs
never fails.

This bug was discovered using Smite.

90/100 · StrongMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context✓ Explains rationale or failure mode✓ Names security-relevant behavior explicitly
Why it was queued
signing boundarysigning or wallet path
AI analysis · Low 26/100

This commit fixes a small accounting bug in how the Lightning wallet estimates the size (and therefore transaction fee) of a special Bitcoin transaction that sweeps funds back to the user after a channel closes. The old code always assumed the largest possible 4-byte encoding of a delay value, even when the real value used only 1 byte. That could make the fee estimate slightly too high and, in rare cases with a short digital signature, trigger an internal debug-only assertion failure. The fix computes the exact size based on the actual delay value and adds a regression test. It is not a remote exploit and does not risk loss of funds.

AI review queuedCorrect docs on `ChannelSigner::get_per_commitment_point`by Matt Corallo · 5057809b · Jul 28, 2026 · 1 fileMessage 65 · AdequateInformational 18Details
Commit message · Matt Corallo

Correct docs on `ChannelSigner::get_per_commitment_point`

This was apparently missed in 1f7b24900d16c841d55fc83e0e2057e241d5e

65/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Provides an explanatory body
Why it was queued
signing or wallet pathsecond-pass: security-sensitive path
AI analysis · Informational 18/100

This commit only updates documentation comments for a Rust function called get_per_commitment_point. It removes an outdated warning that the method was non-asynchronous and that returning an error could cause a crash, and replaces it with guidance that errors can signal a temporarily unavailable signer and how to retry. No actual code logic was changed, so there is no direct security vulnerability introduced or fixed by this patch itself.

AI review queuedln/refactor: remove BlindedTrampolineEntrypointby Carla Kirk-Cohen · 3e0c2697 · Jul 28, 2026 · 3 filesMessage 35 · OpaqueInformational 16Details
Commit message · Carla Kirk-Cohen

ln/refactor: remove BlindedTrampolineEntrypoint

35/100 · OpaqueMessage clarity
✓ Descriptive subject! No meaningful explanatory body
Why it was queued
second-pass: opaque commit message
AI analysis · Informational 16/100

This commit is a small internal code cleanup in the Lightning Dev Kit's Trampoline routing code. It removes a separate 'BlindedTrampolineEntrypoint' payload variant and folds an optional blinding point into the existing 'Forward' variant. The change simplifies the code but does not appear to fix a security bug or change wire behavior in a way that introduces vulnerability. It is a refactor, not a security patch.

Lower-priorityfuzz: allow empty-channel force close with in-flight paymentsby Joost Jager · dbb12502 · Jul 28, 2026 · 1 fileMessage 83 · StrongInformational 17Details
Commit message · Joost Jager

fuzz: allow empty-channel force close with in-flight payments

The chanmon harness can now force-close a target channel as long
as that channel itself has no pending HTLCs, even when another
channel still carries an in-flight payment. When an explicit close
succeeds, mark pending payments that routed over the closed channel
as allowed to fail.

This is the narrowest extension beyond globally HTLC-free closes. It
covers a payment that crossed one hop before its next, still-empty
channel is closed, without yet modeling force closes of channels that
themselves contain HTLCs. Route-aware failure tracking limits the
allowance to affected payments.

83/100 · StrongMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context✓ Mentions testing or verification
Why it was queued
fuzzing or regression evidence
AI analysis · Informational 17/100

This commit changes a fuzz-testing harness, not the production Lightning node code. It loosens a test rule so the fuzzer can simulate force-closing a channel that has no pending payments of its own, even if other channels in the test still have in-flight payments. When that happens, the test now marks any payment that routed through the closed channel as allowed to fail. This is a testing-infrastructure improvement and does not change how real users' funds or channels are handled.

Lower-priorityfuzz: require expected payment failuresby Joost Jager · 090181b1 · Jul 28, 2026 · 1 fileMessage 78 · AdequateInformational 12Details
Commit message · Joost Jager

fuzz: require expected payment failures

Start pending payments at MustSucceed and require every tracked
PaymentFailed to follow an observed failure source. Cover receiver
rejection, corruption, local send failure, local inbound forwarding
failures, and the receive-side CLTV buffer.

Local inbound failures are classified when forwarding leaves an
inbound HTLC waiting for its removal revoke, before the failure can
reach the payer. For relayed failures, use
OutboundHTLCDetails::source to retain exact inbound channel and HTLC
IDs with the payment hash. This prevents same-hash MPP parts from
being mistaken for a local failure root.

78/100 · AdequateMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context✓ Mentions testing or verification
Why it was queued
fuzzing or regression evidence
AI analysis · Informational 12/100

This commit is a fuzz-test hardening change, not a fix for a live security bug. It makes an internal test harness stricter about when a simulated Lightning payment is allowed to fail, so the fuzzer can catch unexpected failure paths. It does not change production code that handles real funds.

Lower-priorityfuzz: centralize payment send trackingby Joost Jager · 671ccb0d · Jul 28, 2026 · 1 fileMessage 78 · AdequateInformational 15Details
Commit message · Joost Jager

fuzz: centralize payment send tracking

Rename the send-state query and local variables to describe whether LDK
still has pending work. Route the existing pending-payment registration
through one helper without changing which sends are tracked.

Later payment invariants must apply consistently to direct, forwarded,
and MPP sends. Centralizing this lifecycle decision keeps tracking
changes from diverging between send helpers.

78/100 · AdequateMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context✓ Mentions testing or verification
Why it was queued
fuzzing or regression evidence
AI analysis · Informational 15/100

This is a small internal cleanup in a fuzz-testing file. It renames a helper function and routes a few bookkeeping calls through a single new helper. There is no change to production code, no change to user-facing behavior, and no security fix.

Lower-priorityfuzz: retain channel ids in payment pathsby Joost Jager · a01754d7 · Jul 28, 2026 · 1 fileMessage 78 · AdequateInformational 13Details
Commit message · Joost Jager

fuzz: retain channel ids in payment paths

Keep each hop ChannelId beside its SCID and retain the complete set
of paths while a payment is pending. This is mechanical preparation;
the new fields are intentionally not interpreted yet.

SCIDs remain the route-building input, while explicit closes identify
channels by ChannelId. Carrying both representations in one path model
lets a later force-close allowance match affected payments without
reconstructing routes or maintaining parallel bookkeeping.

78/100 · AdequateMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context✓ Mentions testing or verification
Why it was queued
fuzzing or regression evidence
AI analysis · Informational 13/100

This commit changes internal fuzz-testing code only. It adds extra bookkeeping so that simulated payment paths remember both a short channel ID and a channel ID. The commit message explicitly says the new fields are not used yet and that this is mechanical preparation for future work. There is no change to production code, no user-facing behavior change, and no security fix or vulnerability introduced in the diff itself.

Lower-priorityfuzz: derive routes from payment pathsby Joost Jager · 5b8a8bf7 · Jul 28, 2026 · 1 fileMessage 78 · AdequateInformational 15Details
Commit message · Joost Jager

fuzz: derive routes from payment paths

Build direct, forwarded, and MPP routes from a shared per-path hop
description. Derive route fees and node metadata from that description,
and increase the CLTV delta by 100 for each successive hop.

Later failure tracking needs to describe the exact route that was sent.
Keeping route construction and bookkeeping on one representation
prevents them from drifting and prepares the tracker to retain more
per-hop failure context.

78/100 · AdequateMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context✓ Mentions testing or verification
Why it was queued
fuzzing or regression evidence
AI analysis · Informational 15/100

This commit is a refactoring of internal fuzz-test code only. It changes how fake Lightning payment routes are built in a test harness so that route construction uses a single shared helper instead of hand-written route structures. There is no change to production code, no user-facing behavior change, and no security fix or vulnerability.

Lower-priorityfuzz: prepare payment failure trackingby Joost Jager · e704b74e · Jul 28, 2026 · 1 fileMessage 78 · AdequateInformational 13Details
Commit message · Joost Jager

fuzz: prepare payment failure tracking

Carry each send's minimum final CLTV expiry into payment
registration. Thread PaymentTracker through HTLC message delivery and
separate PaymentFailed from ProbeFailed dispatch.

A later invariant commit uses this context to classify failure roots.
Keeping the plumbing separate reduces its behavioral review even though
the minimum expiry remains temporarily unread.

78/100 · AdequateMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context✓ Mentions testing or verification
Why it was queued
fuzzing or regression evidence
AI analysis · Informational 13/100

This commit only changes internal fuzz-testing code in rust-lightning. It adds plumbing to track the minimum final CLTV expiry for simulated payments and threads a PaymentTracker through more test helpers. The commit message explicitly says the new value is not yet used and that this is preparation for a later commit. There is no change to production Lightning logic, no fix for a vulnerability, and no security-relevant behavior change.

Lower-priorityfuzz: track payment send resolutionsby Joost Jager · fed08b48 · Jul 28, 2026 · 1 fileMessage 78 · AdequateInformational 15Details
Commit message · Joost Jager

fuzz: track payment send resolutions

Register every send as pending, then move immediate outcomes through
one strict pending-to-resolved transition. Reuse that transition for
terminal events and manager rollback, while handling repeated terminal
events only after confirming the payment was already resolved.

Keep abandoned payments pending while they still have outbound HTLC
state, including holding-cell HTLCs. Later success checks need complete
tracker state and must reject terminal events for payments the harness
never recorded.

78/100 · AdequateMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context✓ Mentions testing or verification
Why it was queued
fuzzing or regression evidence
AI analysis · Informational 15/100

This commit changes an internal fuzz-testing harness in the rust-lightning project. It tightens how the test tracker records and resolves simulated Lightning payments, and adds assertions so the test harness panics if it sees unexpected payment states. It does not change production Lightning node code, network behavior, or wallet logic, so it is not a security fix that affects real users.

Lower-priorityblinded_path: only compact introduction nodes via channels enabled both waysby Vincenzo Palazzo · 0c352c55 · Jul 27, 2026 · 1 fileMessage 81 · StrongLow 47Details
Commit message · Vincenzo Palazzo

blinded_path: only compact introduction nodes via channels enabled both ways

When selecting a channel to reference a compact (DirectedShortChannelId)
introduction node, only consider channels that are enabled in both
directions. Disabled channels cannot be used to reach the introduction
node, and such channels may linger in the local network graph long after
being disabled or even closed (e.g., when sourcing gossip from rapid
gossip sync, which never removes closed channels). Previously, the
oldest channel of the introduction node was selected unconditionally,
which could produce blinded paths that senders cannot resolve or route
to, silently breaking long-lived paths such as those embedded in BOLT 12
offers.

If no enabled channel is found, the NodeId encoding is kept.

Fixes #4826.

81/100 · StrongMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context✓ Links an issue, advisory, or supporting reference
AI analysis · Low 47/100

This change fixes a bug in how Lightning blinded paths choose a compact reference to the introduction node. Previously, the code could pick an old channel that was disabled or effectively closed, making the resulting BOLT 12 offer or blinded path unusable for senders. The fix only selects channels that are enabled in both directions, and falls back to a full node identifier if none qualify. The main risk is reliability and path reachability, not theft of funds or direct remote exploitation.

Security candidateRequire manual reviewer assignmentby Joost Jager · 9c1e5787 · Jul 27, 2026 · 2 filesMessage 63 · AdequateInformational 15Details
Commit message · Joost Jager

Require manual reviewer assignment

Stop assigning reviewers when pull requests are opened. Keep the manual
workflow trigger available for Forgejo's "Assign random reviewer"
button. Only members of the reviewer pool may request an additional
reviewer.

Document that contributors should address the initial AI review before
requesting human review. Clarify that one human reviewer is the default,
with a second requested when the primary reviewer considers it
necessary.

63/100 · AdequateMessage clarity
✓ Descriptive subject✓ Provides detailed explanatory context✓ Names security-relevant behavior explicitly
Why it was queued
signing boundarysigning or wallet path
AI analysis · Informational 15/100

This commit changes the project's internal code-review workflow. It stops automatically assigning a human reviewer when a pull request is opened; instead, contributors must manually click a button to request a reviewer after first addressing an AI review. It also limits who can request extra reviewers. There is no change to the actual Lightning node software, cryptography, network protocol, or any user-facing security behavior.

Lower-priorityExpose DNS query failure on invalid proofs or bad BIP 353 recordsby Matt Corallo · 204134c0 · Jul 24, 2026 · 1 fileMessage 85 · StrongLow 36Details
Commit message · Matt Corallo

Expose DNS query failure on invalid proofs or bad BIP 353 records

In the previous commit we started handling the new `DNSSECError`
onion messages and using them to expose when a BIP 353 resolution
over onion messages should be considered failed due to all of our
queries having filed. However, queries can also fail if all of our
queries either errored or returned bogus proofs, or if we received
a valid proof which proved there is no BIP 353 record or `Offer`.

Here we consider such failures and expose them as well.

85/100 · StrongMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context✓ Explains rationale or failure mode
AI analysis · Low 36/100

This commit changes how a Lightning node handles DNS proof responses for human-readable names (like BIP 353 addresses). Previously, if a DNS proof was invalid, expired, or didn't contain a usable Bitcoin offer, the code silently returned nothing, leaving pending payment requests stuck. Now the code explicitly marks those pending requests as failed and returns the failure to the caller. This is a reliability and minor security improvement: it prevents resolution attempts from hanging indefinitely and lets callers react to bad DNS data rather than waiting forever.

Lower-priorityGenerate `DNSSECError` messages when DNSSEC resolution failsby Matt Corallo · 1a4694bf · Jul 24, 2026 · 1 fileMessage 81 · StrongInformational 23Details
Commit message · Matt Corallo

Generate `DNSSECError` messages when DNSSEC resolution fails

https://github.com/lightning/blips/pull/71 updated the DNSSEC
resolution bLIP to include an explicit error message when DNS(SEC)
resolution was attempted but failed, allowing for faster fallback
to LN-Address (for clients that do) and faster payment failure.

Here we add service-side support for generating the error messages,
informing requesters that their resolutions have failed.

Largely written by an LLM

81/100 · StrongMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context✓ Links an issue, advisory, or supporting reference
AI analysis · Informational 23/100

This commit adds a new error-reporting path in a Lightning DNS resolver. Previously, if a DNSSEC proof lookup failed, the resolver simply stayed silent. Now it sends back an explicit 'DNSSECError' message so the requester knows the lookup failed and can fall back or fail the payment faster. The change is a feature addition with a small, well-scoped security benefit: it removes a silent-failure mode that could cause payment delays or user confusion. There is no evidence of a vulnerability being fixed, and no attacker-controlled behavior is introduced.

Lower-priorityCorrect DNSSEC proof validity time gap applied to header timeby Matt Corallo · d14c22a3 · Jul 24, 2026 · 1 fileMessage 95 · StrongLow 38Details
Commit message · Matt Corallo

Correct DNSSEC proof validity time gap applied to header time

We intended to apply DNSSEC proof validity tests to constrain them
to within two hours of the latest block header time, but the code
landed with a two minute gap instead.

Given DNSSEC proof validity is usually many hours and grace periods
are used to ensure records close to expiry aren't used, this is
somewhat unlikely to have bitten anyone.

95/100 · StrongMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context✓ Explains rationale or failure mode✓ Mentions testing or verification
AI analysis · Low 38/100

This commit fixes a typo-like bug in how DNSSEC proofs are checked against the latest known block time. The code was meant to allow a two-hour time window but accidentally used a two-minute window. This could cause valid DNSSEC proofs to be rejected too aggressively, especially on systems without the standard library or during fuzz testing. The commit message says this is unlikely to have affected real users because DNSSEC proofs are normally valid for many hours and safety margins are already applied.

Lower-priorityRename `OMNameResolver::resolve_name` to `initiate_resolution`by Matt Corallo · 0460fda6 · Jul 24, 2026 · 2 filesMessage 65 · AdequateInformational 15Details
Commit message · Matt Corallo

Rename `OMNameResolver::resolve_name` to `initiate_resolution`

This better captures what the method actually does.

65/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Provides an explanatory body
AI analysis · Informational 15/100

This commit is a simple rename of a Rust method from `resolve_name` to `initiate_resolution`, plus matching updates to comments and test code. It does not change what the code does, only how it is named and described. There is no security issue here.

Lower-priorityf note that only one resolution will fail at a timeby Matt Corallo · a2fe23f5 · Jul 24, 2026 · 1 fileMessage 50 · ThinInformational 15Details
Commit message · Matt Corallo

f note that only one resolution will fail at a time

50/100 · ThinMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component! No meaningful explanatory body
AI analysis · Informational 15/100

This commit only adds two explanatory comments to the code. It does not change any program behavior, fix any bug, or alter any logic. The comments clarify that although the code is written to handle multiple failed DNS resolutions at once, in practice only one can fail at a time because each resolution uses a unique random identifier.

Lower-priorityf names in test lookupsby Matt Corallo · 081a8e10 · Jul 24, 2026 · 1 fileMessage 48 · ThinInformational 15Details
Commit message · Matt Corallo

f names in test lookups

48/100 · ThinMessage clarity
✓ Subject identifies a change✓ Names a concrete action or component✓ Mentions testing or verification! No meaningful explanatory body
AI analysis · Informational 15/100

This is a tiny code cleanup inside a test file. It renames a local variable from `pending` to `pending_resolves` and introduces a helper variable `pending_queries_for_name` to avoid repeating the same lookup expression. There is no change to production code, no security fix, and no behavior change.

Lower-priorityReport the used success probabilities in scorer accessor methodsby Matt Corallo · 68123876 · Jul 24, 2026 · 1 fileMessage 85 · StrongLow 28Details
Commit message · Matt Corallo

Report the used success probabilities in scorer accessor methods

`live_estimated_payment_success_probability` and
`historical_estimated_payment_success_probability` allow clients to
fetch the estimated success probability of a channel directly,
rather than as a score.

Sadly, because they did not check that the amount was strictly
smaller than `max_liquidity_msat`, `success_probability` could hit
a (otherwise-harmless) debug assertion, which is fixed here.

While doing so, we also update them to return the actual
probability estimate used in scoring, applying the 1% lower-bound.

85/100 · StrongMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context✓ Explains rationale or failure mode
AI analysis · Low 28/100

This commit fixes two related issues in rust-lightning's payment scorer. First, two public accessor methods that report estimated payment success probabilities could trigger a debug-only assertion (a crash in debug builds) when asked about an amount equal to or larger than a channel's maximum liquidity. Second, the methods now return the same probability values actually used internally for routing decisions, including a 1% minimum probability floor. The practical effect is that callers get consistent, non-crashing estimates instead of raw values that could be zero or trigger internal checks.

AI review queuedFormat changed functionsby Matt Corallo · 05ce4204 · Jul 24, 2026 · 1 fileMessage 28 · OpaqueInformational 15Details
Commit message · Matt Corallo

Format changed functions

28/100 · OpaqueMessage clarity
✓ Subject identifies a change! No meaningful explanatory body
Why it was queued
second-pass: opaque commit message
AI analysis · Informational 15/100

This commit is purely a code-formatting cleanup. It removes `#[rustfmt::skip]` annotations and lets rustfmt reformat several functions in the routing/scoring module. No logic, behavior, or security properties of the code are changed.