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Bitcoin Core

The Bitcoin network's reference node and wallet implementation.

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Repository coverage

2889 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.

253security candidates604second-pass queue2093AI analyses
207commits · 30 days
502commits · 60 days
1528commits · 180 days
2883commits · 365 days
Backfill bands
Aug 5 → Feb 61351 seen45 candidatesComplete
Feb 6 → Jun 61033 seen63 candidatesComplete
Jun 6 → Jul 6281 seen11 candidatesComplete
Jul 6 → Aug 5207 seen5 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
927Strong · 80–100
1188Adequate · 60–79
686Thin · 40–59
88Opaque · 0–39
6security 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.
Antoine Poinsot22418170
Ava Chow15750146064
MarcoFalke40921274074
Lőrinc17721135081
fanquake22719146057
Hennadii Stepanov20914152063
rkrux57956074
Sjors Provoost89871074
Sebastian Falbesoner33727073
David Gumberg55652072
Pieter Wuille95556066
Hodlinator66545076
Analysis record

Published AI watches

Last scanned 16 minutes ago

Informational 15 AI analysisMessage 93 · Strong
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

Merge bitcoin/bitcoin#35895: refactor: Enable clang-tidy rule to reject anon namespace in header

This is a code cleanup change that turns on a static-analysis rule to prevent a specific C++ coding pattern (anonymous namespaces in header files) and updates two headers to comply. It does not change how Bitcoin Core behaves at runtime an…

No security-relevant code changeNo memory safety, cryptography, consensus, or network changesTooling-only refactor (clang-tidy configuration)
c4fbd3c7by merge-script+9−123 files
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Informational 15 AI analysisMessage 100 · Strong
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

Merge bitcoin/bitcoin#35630: test: Add importdescriptors rpc error test coverage

This commit only adds new test cases to Bitcoin Core's functional test suite. It does not change any production wallet, node, or RPC code. The tests verify that the importdescriptors RPC reports errors in the right order, rejects bad times…

465196d0by merge-script+77−11 file
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Informational 15 AI analysisMessage 81 · Strong
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

Merge bitcoin/bitcoin#35180: coins: group private cache helpers

This change is purely a code cleanup: it moves two internal helper functions of a Bitcoin Core cache class into the private section of the class and removes a duplicate 'private:' label. There is no change to what the code does, no bug fix…

c940fd75by merge-script+13−141 file
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Low 29 AI analysisMessage 81 · Strong
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

Merge bitcoin/bitcoin#35582: rpc: reject null for optional parameters

This Bitcoin Core change tightens how three RPC commands (scantxoutset, scanblocks, deriveaddresses) handle the value null when it is passed for optional parameters. Previously, explicitly passing null could be treated differently from sim…

RPC parameter validation changeNull value handling changeAddition of explicit error checks for missing required contextual parameters
3db96eb5by merge-script+18−75 files
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Informational 15 AI analysisMessage 57 · Thin
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

refactor: Enable misc-definitions-in-headers

This commit is a code cleanup: it turns on a clang-tidy style check called 'misc-definitions-in-headers' and suppresses that check around a large inline implementation block in a benchmark header. There is no change to Bitcoin's runtime be…

fa93132dby MarcoFalke+3−02 files
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Informational 15 AI analysisMessage 85 · Strong
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

refactor: Enable clang-tidy rule to reject anon namespace in header

This commit only changes a linting configuration file for the project's code style checker. It enables a rule that prevents anonymous namespaces from being used in header files, which is a code-quality and build-hygiene practice. There is …

No security-relevant signals in the diff or commit message.Change is purely a static-analysis/linting configuration update.
fa5ca877by MarcoFalke+2−11 file
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Informational 15 AI analysisMessage 62 · Adequate
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

refactor: Use C++20 std::identity over IntIdentity

This commit is a straightforward code cleanup: it replaces a small custom helper named IntIdentity with the standard C++20 std::identity from the <functional> header. The behavior of the ConvertBits function is unchanged; only the implemen…

fafe5042by MarcoFalke+4−111 file
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Informational 15 AI analysisMessage 87 · Strong
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

test: test the result order of a multiple import request is correct

This commit only adds a new automated test to Bitcoin Core. It checks that when a user asks the wallet to import multiple descriptors at once, the list of results comes back in the same order as the original request, including any error me…

3ac8b806by Pol Espinasa+40−01 file
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Informational 15 AI analysisMessage 87 · Strong
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

test: test invalid or missing timestamp throws importdescriptors

This commit only adds new automated tests for the Bitcoin Core wallet's importdescriptors RPC. It checks that the command correctly rejects requests with a missing or invalid timestamp. No production wallet code is changed, so this cannot …

No changes to consensus, networking, wallet logic, or cryptographyOnly functional test code is modifiedAdded assertions are for expected error handling paths
e4732bf0by Pol Espinasa+28−11 file
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Informational 15 AI analysisMessage 80 · Strong
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

refactor: Remove unused #include in common/system

This is a minor code cleanup that removes one unused header file include and swaps another for a more specific one. It does not change any program behavior or fix any security issue.

fa7304f3by MarcoFalke+1−22 files
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Informational 15 AI analysisMessage 50 · Thin
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

iwyu: Fix warnings in `src/consensus` and treat them as errors

This commit is a routine code cleanup: it adjusts which C++ header files are included in several consensus-related source files and turns on a stricter compiler hygiene check (Include What You Use, or IWYU) for the src/consensus directory.…

13b53f8bby Hennadii Stepanov+42−79 files
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Informational 15 AI analysisMessage 55 · Thin
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

fuzz: don't connman.ReceiveMsgFrom oversized msg

This is a small fix to a Bitcoin Core fuzz test (an automated internal testing harness), not to the live network code. The fuzzer was sometimes creating fake P2P messages larger than the real protocol allows and passing them into a test he…

Test-only fuzz harness hardeningOversized message guard added before ReceiveMsgFrom() in fuzz targetNo change to production P2P message acceptance logic
bb19f1daby Greg Sanders+5−01 file
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Informational 15 AI analysisMessage 97 · Strong
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

ci: Temporarily remove riscv32 config from GHA matrix

This commit simply removes one failing test configuration (RISC-V 32-bit bare metal) from the project's GitHub Actions CI matrix because it was failing. It is a routine CI maintenance change with no security implications.

fa06ea42by MarcoFalke+0−61 file
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Low 47 AI analysisMessage 90 · Strong
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

ci: verify cross-build SDK archives

This change adds checksum verification to the build system's downloads of Apple, FreeBSD, NetBSD, and OpenBSD software development kits (SDKs). Before this patch, those SDK archives were downloaded at build time and extracted without confi…

Adds cryptographic digest verification for downloaded SDK archivesRemoves unchecked extraction of remote SDK archives in CIHardens CI supply chain for macOS/BSD cross-builds
873550beby Lőrinc+25−126 files
Vendor flagged security relevance
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Informational 15 AI analysisMessage 80 · Strong
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

ci: update NetBSD cross-build SDK

This is a routine maintenance update to Bitcoin Core's continuous integration (CI) system. It changes the version number of the NetBSD operating system used for cross-compilation testing from a release candidate (11.0_RC6) to the final rel…

2c87337eby Lőrinc+1−11 file
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Informational 15 AI analysisMessage 72 · Adequate
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

test: require `TryGetTotalRam()` detection

This commit only changes a test file and build configuration. It removes the option to skip a test when the system cannot detect total RAM, and instead requires the RAM detection to succeed. It does not change any production wallet, networ…

6a2de55aby Lőrinc+3−112 files
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Informational 15 AI analysisMessage 68 · Adequate
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

scripted-diff: use `MIN_DBCACHE_BYTES`

This commit is a simple automated rename of a constant from MIN_DB_CACHE to MIN_DBCACHE_BYTES across five files. The value stays the same (4 MiB), and no behavior changes. It is a code-cleanup/refactoring change with no security relevance.

7cfa21d6by Lőrinc+5−55 files
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Informational 20 AI analysisMessage 68 · Adequate
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

kernel: allow setting chainstate `dbcache`

This commit adds a new public API knob to the Bitcoin Core 'libbitcoinkernel' library so that programs using the kernel can choose how much memory to use for the chainstate database cache. It also enforces minimum and maximum size limits. …

New configurable cache-size API with explicit min/max validationReplaces hard-coded DEFAULT_KERNEL_CACHE with caller-supplied valueAdds unit tests for out-of-range rejection and 32-bit upper-bound rejection
8bd9f460by Lőrinc+41−14 files
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Informational 15 AI analysisMessage 68 · Adequate
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

kernel, node: colocate dbcache bounds

This commit is a small code cleanup: it moves two constants that define the minimum and maximum size of the database cache (dbcache) into a shared kernel header so that both the node and kernel code use the same limits. There is no change …

8aa21e11by Lőrinc+7−74 files
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Informational 15 AI analysisMessage 62 · Adequate
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

node, qt: inline `DEFAULT_DB_CACHE`

This is a small code cleanup change in Bitcoin Core. It removes a misleading alias named DEFAULT_DB_CACHE and replaces it with the underlying name DEFAULT_KERNEL_CACHE in a few places. The behavior of the program is unchanged; only the nam…

cd086c16by Lőrinc+5−74 files
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Lower-prioritydoc: Release note for addhdkeyby Ava Chow · a39cc16b · Apr 29, 2026 · 1 fileMessage 45 · ThinInformational 15Details
Commit message · Ava Chow

doc: Release note for addhdkey

45/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component! No meaningful explanatory body
Why it was queued
documentation-only discount
AI analysis · Informational 15/100

This commit only adds a release note describing a new wallet RPC called addhdkey. It contains no code changes and no security-related content.

AI review queuedwallet: Add addhdkey RPCby Ava Chow · f3f8bcbd · Apr 29, 2026 · 2 filesMessage 28 · OpaqueInformational 23Details
Commit message · Ava Chow

wallet: Add addhdkey RPC

28/100 · OpaqueMessage clarity
✓ Subject identifies a change! No meaningful explanatory body
Why it was queued
signing or wallet pathsecond-pass: opaque commit messagesecond-pass: security-sensitive path
AI analysis · Informational 23/100

This commit adds a new wallet RPC command called addhdkey that lets users import a BIP32 extended private key (xprv) into a Bitcoin Core wallet, or generate a fresh random one. It is a feature addition, not a bug fix. The code checks that the wallet stores private keys, requires the wallet to be unlocked, rejects plain xpubs, and refuses duplicate keys. There is no indication in the commit that this fixes a security vulnerability.

Security candidatepsbt: Change default psbt version to 2by Ava Chow · e0e4dbde · Apr 29, 2026 · 2 filesMessage 45 · ThinInformational 21Details
Commit message · Ava Chow

psbt: Change default psbt version to 2

45/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component! No meaningful explanatory body
Why it was queued
signing boundarysigning or wallet path
AI analysis · Informational 21/100

This commit changes the default version number used when Bitcoin Core creates new Partially Signed Bitcoin Transactions (PSBTs) from version 0 to version 2. PSBT is a standard format for passing around unsigned or partially signed transactions between wallets and signers. The change itself is a one-line default-value update plus a test that confirms new PSBTs are created as version 2. It does not fix a memory corruption bug, crash, or remote-code-execution flaw, and there is no evidence in the commit or supplied references that it addresses a known security incident.

Security candidatefuzz: Enforce additional version invariants in PSBT fuzzerby Antoine Poinsot · 470e52a5 · Apr 29, 2026 · 3 filesMessage 60 · AdequateInformational 17Details
Commit message · Antoine Poinsot

fuzz: Enforce additional version invariants in PSBT fuzzer

60/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Mentions testing or verification! No meaningful explanatory body
Why it was queued
signing boundaryfuzzing or regression evidencesigning or wallet path
AI analysis · Informational 17/100

This commit only changes test/fuzzing code and adds equality operators to internal data structures so the fuzzer can check round-trip behavior of PSBT (Partially Signed Bitcoin Transaction) data. It does not change production transaction handling, consensus rules, or network code. There is no indication it fixes an exploitable vulnerability.

Security candidateRestrict joinpsbts to PSBTv0 onlyby Ava Chow · d9cf658e · Apr 29, 2026 · 1 fileMessage 45 · ThinLow 32Details
Commit message · Ava Chow

Restrict joinpsbts to PSBTv0 only

45/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component! No meaningful explanatory body
Why it was queued
signing boundarysigning or wallet path
AI analysis · Low 32/100

This change updates the Bitcoin Core 'joinpsbts' RPC command so it only accepts PSBT version 0 files. Previously, it could accept newer PSBT versions, which might have led to incorrect or unexpected behavior when combining partially signed transactions. The change adds an explicit version check and rejects non-v0 PSBTs with a clear error message.

Security candidateImplement PSBTv2 in decodepsbtby Ava Chow · dcc9a3c8 · Apr 29, 2026 · 1 fileMessage 35 · OpaqueInformational 18Details
Commit message · Ava Chow

Implement PSBTv2 in decodepsbt

35/100 · OpaqueMessage clarity
✓ Descriptive subject! No meaningful explanatory body! Opaque security-relevant change
Why it was queued
signing boundarysigning or wallet path
AI analysis · Informational 18/100

This commit updates the Bitcoin Core 'decodepsbt' RPC command so it can display the newer PSBT version 2 format. It only changes what information is shown to the user; it does not change how transactions are validated, signed, or broadcast. There is no indication this is a security fix.

Security candidatetest: Tests for PSBT AddInput and AddOutputby Ava Chow · 5bd0579c · Apr 29, 2026 · 1 fileMessage 67 · AdequateInformational 15Details
Commit message · Ava Chow

test: Tests for PSBT AddInput and AddOutput

67/100 · AdequateMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Mentions testing or verification! No meaningful explanatory body
Why it was queued
signing boundarysigning or wallet path
AI analysis · Informational 15/100

This commit only adds new automated tests for existing PSBT (Partially Signed Bitcoin Transaction) helper functions called AddInput and AddOutput. It does not change any production wallet, consensus, or networking code. The tests verify that the functions correctly reject mismatched PSBT versions, duplicate inputs, inputs that violate timelock rules, and additions when the transaction is marked as non-modifiable. There is no indication this commit fixes a security bug or introduces a vulnerability.

Security candidatetest: Test merging implicit PSBTv0 with explicit PSBTv0by w0xlt · 9fa4076b · Apr 29, 2026 · 1 fileMessage 72 · AdequateInformational 15Details
Commit message · w0xlt

test: Test merging implicit PSBTv0 with explicit PSBTv0

72/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Mentions testing or verification! No meaningful explanatory body
Why it was queued
signing boundarysigning or wallet path
AI analysis · Informational 15/100

This commit adds a new test case to Bitcoin Core's functional test suite. It verifies that two PSBT (Partially Signed Bitcoin Transaction) version 0 encodings—one with the version field explicitly set to 0 and one with it omitted—can be merged together correctly. There is no code change to the actual Bitcoin Core node software, only a new regression test.

Security candidatetests: Add PSBT unit test for ComputeTimeLockby Ava Chow · b8b6e7f0 · Apr 29, 2026 · 2 filesMessage 55 · ThinInformational 15Details
Commit message · Ava Chow

tests: Add PSBT unit test for ComputeTimeLock

55/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Mentions testing or verification! No meaningful explanatory body
Why it was queued
signing boundarysigning or wallet path
AI analysis · Informational 15/100

This commit only adds a new unit test file for an existing PSBT (Partially Signed Bitcoin Transaction) function called ComputeTimeLock. It does not change any production code, wallet logic, or network behavior. There is no security fix or vulnerability being patched here.

Security candidateImplement PSBTv2 field mergingby Ava Chow · ab38c301 · Apr 29, 2026 · 2 filesMessage 35 · OpaqueLow 28Details
Commit message · Ava Chow

Implement PSBTv2 field merging

35/100 · OpaqueMessage clarity
✓ Descriptive subject! No meaningful explanatory body! Opaque security-relevant change
Why it was queued
signing boundarysigning or wallet path
AI analysis · Low 28/100

This commit updates how Bitcoin Core combines two Partially Signed Bitcoin Transactions (PSBTs). It adds checks to prevent merging PSBTs of different versions, propagates failure if any input or output cannot be merged, and copies new PSBTv2-only fields such as sequence numbers, locktimes, and modifiable flags. The change is a correctness and robustness improvement rather than a clear security fix.

Security candidateReplace PSBT.tx with PSBT::GetUnsignedTx and PSBT::GetUniqueIDby Ava Chow · 3da0e160 · Apr 29, 2026 · 6 filesMessage 85 · StrongLow 33Details
Commit message · Ava Chow

Replace PSBT.tx with PSBT::GetUnsignedTx and PSBT::GetUniqueID

The global unsigned tx is decomposed into separate fields inside of
PSBT, which mirrors what PSBTv2 will do. However, we still need to get
the global unsigned tx so PSBT::GetUnsignedTx is introduced to do that.
In order to also have a stable unique ID, we also introduce
PSBT::GetUniqueID to replace uses of PSBT.tx.GetHash().

85/100 · StrongMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context✓ Explains rationale or failure mode
Why it was queued
signing boundarysigning or wallet path
AI analysis · Low 33/100

This commit refactors how Bitcoin Core handles Partially Signed Bitcoin Transactions (PSBTs). Previously, a PSBT stored a complete copy of the unsigned transaction. Now, the transaction is broken into separate fields and reconstructed on demand. The change also introduces a stable unique ID for each PSBT. This is primarily a code-cleanup and preparation step for a future PSBT version 2, not a direct fix for an active security bug.

Security candidateAdd psbt_version to PSBT RPCs and default to v2by Ava Chow · bcc1dca7 · Apr 29, 2026 · 12 filesMessage 68 · AdequateInformational 24Details
Commit message · Ava Chow

Add psbt_version to PSBT RPCs and default to v2

walletcreatefundedpsbt, createpsbt, converttopsbt, and psbtbumpfee take
a psbt_version argument to set the version of the PSBT that they
produce. The default psbt_version is 2.

68/100 · AdequateMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context
Why it was queued
signing boundarysigning or wallet path
AI analysis · Informational 24/100

This commit updates Bitcoin Core's Partially Signed Bitcoin Transaction (PSBT) RPC commands so they can produce the newer PSBT version 2 format, and makes version 2 the default. It is a feature and compatibility change, not a fix for an active security vulnerability. The code validates that only versions 0 or 2 can be requested, and updates tests to match the new output structure. There is no indication in the commit that this resolves a disclosed security issue.

Security candidateAllow specifying PSBT version in constructorby Ava Chow · b39c86ae · Apr 29, 2026 · 3 filesMessage 60 · AdequateInformational 19Details
Commit message · Ava Chow

Allow specifying PSBT version in constructor

The constructor will create the PSBT of the specified version, as long
as it is 0 or 2.

60/100 · AdequateMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Provides an explanatory body
Why it was queued
signing boundarysigning or wallet path
AI analysis · Informational 19/100

This change lets the PSBT constructor choose between version 0 or version 2 when creating a new Partially Signed Bitcoin Transaction. It also fixes a small consistency bug in the joinpsbts RPC where newly created PSBTs during joining/shuffling were always version 0, even when the inputs being joined were version 2. There is no direct evidence this is a security fix, and the new version parameter is guarded by an assertion that only allows 0 or 2.

Security candidateAdd PSBT::ComputeLockTime()by Ava Chow · 5770dbd3 · Apr 29, 2026 · 2 filesMessage 50 · ThinLow 27Details
Commit message · Ava Chow

Add PSBT::ComputeLockTime()

Function to compute the lock time for the transaction

50/100 · ThinMessage clarity
✓ Descriptive subject✓ Provides an explanatory body
Why it was queued
signing boundarysigning or wallet path
AI analysis · Low 27/100

This commit adds a helper function that calculates when a Bitcoin transaction becomes valid based on time or block height locks inside a Partially Signed Bitcoin Transaction (PSBT). It also makes the existing unsigned-transaction builder use this new calculation instead of always using a simple fallback value. The change appears to be a correctness improvement for PSBT version 2 locktime handling, not an obvious security fix, but it prevents a PSBT from being turned into a transaction when its inputs disagree about whether the lock is based on time or block height.

Security candidateImplement PSBTv2 fields de/serby Ava Chow · 925161ea · Apr 29, 2026 · 2 filesMessage 45 · ThinLow 28Details
Commit message · Ava Chow

Implement PSBTv2 fields de/ser

45/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component! No meaningful explanatory body
Why it was queued
signing boundarysigning or wallet path
AI analysis · Low 28/100

This commit adds support for a new version of Partially Signed Bitcoin Transactions (PSBTv2) in Bitcoin Core. It introduces serialization and deserialization code for new PSBTv2 fields, including transaction version, input/output counts, modifiable flags, per-input previous outpoints and locktimes, and per-output amounts and scripts. The commit also adds validation rules to reject malformed or version-inconsistent PSBT data. There is no indication in the commit message or diff that this is a security fix; it appears to be a feature implementation.

AI review queuedtests: Add test vectors from BIP 370by Ava Chow · 0bc1c2e5 · Apr 29, 2026 · 1 fileMessage 55 · ThinInformational 15Details
Commit message · Ava Chow

tests: Add test vectors from BIP 370

55/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Mentions testing or verification! No meaningful explanatory body
Why it was queued
fuzzing or regression evidencesigning or wallet pathsecond-pass: security-sensitive path
AI analysis · Informational 15/100

This commit only adds new test data (sample PSBT strings) to a JSON file used by Bitcoin Core's automated tests. It does not change any production code, wallet logic, or network behavior. There is no security issue here.

Security candidatepsbt: Return std::optional from PrecomputePSBTDataby Ava Chow · c568624f · Apr 29, 2026 · 8 filesMessage 50 · ThinLow 34Details
Commit message · Ava Chow

psbt: Return std::optional from PrecomputePSBTData

50/100 · ThinMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component! No meaningful explanatory body
Why it was queued
signing boundarysigning or wallet path
AI analysis · Low 34/100

This commit changes a Bitcoin Core internal helper function so that it can now report failure when a PSBT (Partially Signed Bitcoin Transaction) is internally inconsistent. Previously, the helper would build transaction precomputation data without checking whether the underlying unsigned transaction could actually be constructed. Now it returns an optional value that callers must check, and they reject or abort the operation if the transaction cannot be valid. This is a defensive hardening change that prevents the code from continuing with malformed PSBTs.

Security candidateReplace PSBT::GetInputUTXO with PSBTInput::GetUTXOby Ava Chow · 092de4f1 · Apr 29, 2026 · 4 filesMessage 65 · AdequateInformational 15Details
Commit message · Ava Chow

Replace PSBT::GetInputUTXO with PSBTInput::GetUTXO

Now that PSBTInput's track their own prevouts, there's no need for a
PSBT global function to fetch input specific data.

65/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Provides an explanatory body
Why it was queued
signing boundarysigning or wallet path
AI analysis · Informational 15/100

This commit is a straightforward internal code cleanup in Bitcoin Core. It moves a helper function that looks up the previous transaction output (UTXO) for a PSBT input from the whole-transaction object (PartiallySignedTransaction) into the input object itself (PSBTInput). The behavior is unchanged; only the code organization is simplified.

Security candidateUpdate test_framework/psbt.py for PSBTv2by Ava Chow · 863cf47b · Apr 29, 2026 · 2 filesMessage 45 · ThinInformational 15Details
Commit message · Ava Chow

Update test_framework/psbt.py for PSBTv2

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

This commit updates Bitcoin Core's internal test-framework Python helper for Partially Signed Bitcoin Transactions (PSBT) to support the newer PSBT version 2 format. It is a test/development tooling change, not a change to the live Bitcoin network code that validates transactions or consensus rules. There is no indication this fixes a security bug or introduces a vulnerability.

Security candidatedoc: Release notes for psbtv2by Ava Chow · 1660c182 · Apr 29, 2026 · 1 fileMessage 45 · ThinInformational 15Details
Commit message · Ava Chow

doc: Release notes for psbtv2

45/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component! No meaningful explanatory body
Why it was queued
signing boundarydocumentation-only discount
AI analysis · Informational 15/100

This commit only adds release notes documentation. It describes a planned change where several Bitcoin RPC commands will default to creating a newer PSBT format (version 2) and gain an optional version argument. There is no code change, no bug fix, and no security issue in this commit itself.

Security candidateImplement PSBTv2 AddInput and AddOutputby Ava Chow · 93e339e2 · Apr 29, 2026 · 2 filesMessage 45 · ThinInformational 20Details
Commit message · Ava Chow

Implement PSBTv2 AddInput and AddOutput

45/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component! No meaningful explanatory body
Why it was queued
signing boundarysigning or wallet path
AI analysis · Informational 20/100

This commit finishes implementing the 'AddInput' and 'AddOutput' methods for PSBT version 2 in Bitcoin Core. PSBTs are files used to collaboratively build or sign Bitcoin transactions offline. Previously, adding inputs/outputs to a PSBTv2 would silently fail (return false). The change now properly checks version compatibility, respects the 'modifiable' flags that say whether inputs/outputs may be added, and handles time-lock consistency when new inputs are appended. It is a feature-completion patch with defensive checks, not a fix for an active vulnerability.

AI review queuedwallet, test: Remove DuplicateMockDatabaseby Ava Chow · 1d1ae6f0 · Apr 29, 2026 · 2 filesMessage 68 · AdequateInformational 15Details
Commit message · Ava Chow

wallet, test: Remove DuplicateMockDatabase

DuplicateMockDatabase is no longer used. Furthermore, as SQLite gets
used more as a database and less as a key value store, this function
gets more complicated and more bug prone. As the benchmarks now run
equivalently quickly with a real database, retaining this duplication
function is no longer necessary.

68/100 · AdequateMessage clarity
✓ Descriptive subject✓ Provides detailed explanatory context✓ Mentions testing or verification
Why it was queued
signing or wallet pathsecond-pass: security-sensitive path
AI analysis · Informational 15/100

This commit simply removes an unused test helper function called DuplicateMockDatabase and its declaration. It is a code cleanup change with no effect on the live Bitcoin wallet software users run.

AI review queuedtest: Simple test for importing unused(KEY)by Ava Chow · 82bc280d · Apr 29, 2026 · 1 fileMessage 67 · AdequateInformational 15Details
Commit message · Ava Chow

test: Simple test for importing unused(KEY)

67/100 · AdequateMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Mentions testing or verification! No meaningful explanatory body
Why it was queued
signing or wallet pathsecond-pass: security-sensitive path
AI analysis · Informational 15/100

This commit adds a new automated test to Bitcoin Core that checks the behavior of importing a special 'unused(KEY)' wallet descriptor. It verifies that importing a public-only version is rejected for wallets that have private keys enabled, while importing a private-key version succeeds and registers the expected extended public key. There is no change to production wallet code, no bug fix, and no security-relevant behavior beyond normal test coverage.

AI review queueddescriptor: Add unused(KEY) descriptorby Ava Chow · 80c29bc6 · Apr 29, 2026 · 5 filesMessage 68 · AdequateInformational 19Details
Commit message · Ava Chow

descriptor: Add unused(KEY) descriptor

unused() descriptors do not have scriptPubKeys. Instead, the wallet uses
them to store keys without having any scripts to watch for.

68/100 · AdequateMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context
Why it was queued
signing or wallet pathsecond-pass: security-sensitive path
AI analysis · Informational 19/100

This commit adds a new wallet descriptor type called unused(KEY). It lets Bitcoin Core wallets store a key without watching any blockchain addresses for it. The change is a feature addition, not a fix for an active security bug. It includes parsing rules, tests, and a small wallet tweak to skip address labeling for descriptors that do not produce output scripts. There is no evidence in the commit or supplied references of a disclosed vulnerability or exploit.

Security candidatepsbt: Remove default constructorby Ava Chow · c01c7f06 · Apr 29, 2026 · 14 filesMessage 70 · AdequateInformational 19Details
Commit message · Ava Chow

psbt: Remove default constructor

Instead of allowing PSBTs to be default constructor, force usage of the
deserialization constructor.

CombinePSBTs, DecodeBase64PSBT, and DecodeRawPSBT are all changed to
return std::optional or util::result rather than using an output
parameter to avoid the need for a default constructor.

70/100 · AdequateMessage clarity
✓ Descriptive subject✓ Provides detailed explanatory context✓ Explains rationale or failure mode
Why it was queued
signing boundarysigning or wallet pathparser or protocol path
AI analysis · Informational 19/100

This commit is a code-quality refactor for Bitcoin Core's Partially Signed Bitcoin Transaction (PSBT) handling. It removes the ability to create an empty/default PSBT object and changes helper functions so they return a valid PSBT or an explicit failure instead of filling in an empty object. This makes accidental use of an uninitialized PSBT impossible, but it does not fix a known active bug or vulnerability by itself.