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BTCPay Server

Free, open-source, self-hosted Bitcoin payment processor supporting on-chain and Lightning payments.

BitcoinLightning NetworkPayment infrastructureNormal
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Repository coverage

563 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.

77security candidates198second-pass queue275AI analyses
65commits · 30 days
111commits · 60 days
314commits · 180 days
563commits · 365 days
Backfill bands
Aug 8 → Feb 9247 seen22 candidatesComplete
Feb 9 → Jun 9197 seen39 candidatesComplete
Jun 9 → Jul 954 seen0 candidatesComplete
Jul 9 → Aug 865 seen16 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.

53/100 average clarity
76Strong · 80–100
134Adequate · 60–79
215Thin · 40–59
138Opaque · 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.
Nicolas Dorier36544203346
Cerberus622290
rockstardev31612049
Abhijay Jain26610087
Chukwuleta Tobechi1857070
thgO.O29411065
Tim522074
Atharva Borade711067
dstrukt413065
Pavlenex412065
psam21312068
Nicholas Halka111091
Analysis record

Published AI watches

Last scanned 54 minutes ago

Informational 15 AI analysisMessage 18 · Opaque
BT BTCPay ServerBTCPay Server BitcoinLightning NetworkPayment infrastructure

Update Changelog

This commit only edits the wording of a changelog entry for BTCPay Server 2.4.2. It does not change any code, configuration, or executable files. The edit makes the release sound more urgent, but the commit itself is purely documentation a…

Changelog language changed to describe a critical, actively exploited vulnerability in release 2.4.2No code, configuration, or dependency changes present in the commitSecurity issue is referenced but not fixed or explained in this diff
fbf761f3by Nicolas Dorier+1−11 file
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Low 49 AI analysisMessage 28 · Opaque
BT BTCPay ServerBTCPay Server BitcoinLightning NetworkPayment infrastructure

Disabled unwanted routes

This commit marks several public methods on ASP.NET Core controllers with [NonAction], which prevents them from being exposed as web-accessible HTTP routes. Without this attribute, these helper methods could be reached directly via URL, po…

Public controller methods exposed as unintended HTTP routesRouting-level access-control hardeningPotential bypass of intended controller action flow
6689cad4by Nicolas Dorier+9−05 files
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Moderate 64 AI analysisMessage 38 · Opaque
BT BTCPay ServerBTCPay Server BitcoinLightning NetworkPayment infrastructure

Changelog for 2.4.2

This commit is a version bump and changelog for BTCPay Server 2.4.2. The changelog describes two security-related changes: disabling Basic authentication by default shortly after account creation, and fixing a TOTP two-factor authenticatio…

Vendor describes security fixes in changelogTOTP two-factor authentication bypass via Greenfield Basic authenticationBasic authentication disabled by default after account creation
3e2928cfby Nicolas Dorier+29−12 files
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Informational 15 AI analysisMessage 18 · Opaque
BT BTCPay ServerBTCPay Server BitcoinLightning NetworkPayment infrastructure

Update translations

This commit only adds, removes, and reorders English text strings used for translations and user-interface labels in BTCPay Server. There are no code logic changes, no security settings being enabled or disabled, and no behavior changes. I…

8d5f52daby Nicolas Dorier+17−11 file
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Low 25 AI analysisMessage 0 · Opaque
BT BTCPay ServerBTCPay Server BitcoinLightning NetworkPayment infrastructure

bump deps

This commit updates several third-party software libraries and a test Docker image to newer versions. It also removes one library (AngleSharp) that was no longer needed. Dependency updates can fix security bugs in those external packages, …

Dependency version bumps for packages that handle HTML sanitization (HtmlSanitizer) and Bitcoin protocol parsing (NBitcoin/NBXplorer)Removal of unused AngleSharp package referenceNo commit-level description of security fixes or CVEs
1c16e265by Nicolas Dorier+10−1110 files
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Moderate 62 AI analysisMessage 63 · Adequate
BT BTCPay ServerBTCPay Server BitcoinLightning NetworkPayment infrastructure

Disable Greenfield Basic Auth by default after 5 min of user creation (#7492)

This change makes BTCPay Server's Greenfield API stop accepting username-and-password 'Basic' authentication by default for existing users. New accounts can still use it for only the first five minutes after creation to set up an API key. …

Disables Basic authentication by default after a 5-minute onboarding windowAdds per-user opt-in flag for Basic auth in data model, API, and UITightens rate-limit bypass to require a recently created account
61cb0702by Nicolas Dorier+74−612 files
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Informational 15 AI analysisMessage 58 · Thin
BT BTCPay ServerBTCPay Server BitcoinLightning NetworkPayment infrastructure

Containerize store settings views into sections & clean up views (#7448)

This commit is a user-interface redesign, not a security fix. It wraps store settings pages in new visual 'section' containers, updates headings and spacing, and adjusts CSS styling. No code behavior, permissions, or data handling changed.

b8774051by dstrukt+715−54920 files
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Critical 86 AI analysisMessage 75 · Adequate
BT BTCPay ServerBTCPay Server BitcoinLightning NetworkPayment infrastructure

Fix: TOTP 2FA bypass via Greenfield Basic auth (#7491)

BTCPay Server fixed a bug where accounts protected only by TOTP-based two-factor authentication (2FA) could access the Greenfield API using just an email and password, skipping the second factor. The change now blocks Basic authentication …

2FA bypassauthentication logic flawTOTP bypass
c173a919by Nicolas Dorier+1−11 file
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Informational 23 AI analysisMessage 58 · Thin
BT BTCPay ServerBTCPay Server BitcoinLightning NetworkPayment infrastructure

Adds table (wallet transactions) column controls (hide/show/re-order) (#7474)

This commit adds a user-facing preference feature to BTCPay Server's wallet transactions table: a dropdown that lets users show, hide, and reorder columns. Preferences are saved in the browser's localStorage. The change is a routine UI enh…

No security-relevant keywords in commit title or messagePure client-side UI feature using localStorageNo changes to authentication, authorization, or input processing
033460e7by dstrukt+422−157 files
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Moderate 57 AI analysisMessage 45 · Thin
BT BTCPay ServerBTCPay Server BitcoinLightning NetworkPayment infrastructure

Cover all generated witness PSBTs

This commit changes how BTCPay Server decides whether a Bitcoin transaction input is a SegWit (witness) type when building PSBTs (Partially Signed Bitcoin Transactions). Previously the code only recognized three specific SegWit formats: na…

Broadens SegWit detection from a fixed allow-list to any ScriptType.Witness, mitigating future-version compatibility issuesAdds missing WitnessUtxo population in two wallet PSBT creation pathsWitness UTXO data reduces reliance on NonWitnessUtxo (full previous transaction) for SegWit inputs, which is a known PSBT hardening recommendation
ede7cc70by rockstardev+10−133 files
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Low 35 AI analysisMessage 28 · Opaque
BT BTCPay ServerBTCPay Server BitcoinLightning NetworkPayment infrastructure

Preserve imported PSBTs

This commit removes a single line that automatically added witness UTXO data to SegWit inputs when decoding a PSBT. The change is titled 'Preserve imported PSBTs,' suggesting the previous behavior was modifying user-supplied transaction da…

PSBT mutation behavior changedWitness UTXO data no longer auto-injected for SegWit inputsPotential data-integrity / non-repudiation consideration for imported PSBTs
31ad661aby rockstardev+0−11 file
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Low 40 AI analysisMessage 50 · Thin
BT BTCPay ServerBTCPay Server BitcoinLightning NetworkPayment infrastructure

Finalize stale pending multisig transactions on read

This commit fixes a bookkeeping bug in BTCPay Server's multisig (multi-signature) transaction tracker. Previously, a pending transaction could silently collect enough signatures to be finalized, but the system would still label it as 'Pend…

State-machine inconsistency: persisted transaction state could diverge from actual signature countMultisig workflow: incorrect 'Pending' label for a transaction that is actually ready to broadcastNo input validation or authorization changes in the diff
1bcfc148by rockstardev+60−62 files
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Low 45 AI analysisMessage 45 · Thin
BT BTCPay ServerBTCPay Server BitcoinLightning NetworkPayment infrastructure

Include witness UTXOs in SegWit PSBTs

This commit changes BTCPay Server so that when it builds or decodes Partially Signed Bitcoin Transactions (PSBTs), it explicitly adds a compact 'witness UTXO' record for any SegWit inputs. Previously, some SegWit PSBTs may only have carrie…

PSBT data completeness change for SegWit inputsPotential prior state: SegWit PSBTs may have been distributed without witness UTXOsHardware-wallet compatibility / BIP-174 compliance improvement
63236df4by rockstardev+83−04 files
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Low 26 AI analysisMessage 50 · Thin
BT BTCPay ServerBTCPay Server BitcoinLightning NetworkPayment infrastructure

Address pending signature retry review feedback

This commit is a follow-up code review patch for BTCPay Server's pending Bitcoin transaction (multisig) signing feature. It tightens when the service logs a warning versus a debug message after a failed finalization attempt, and it removes…

Logging level change reduces false-warning noise but could mask real finalization failures if SignaturesNeeded is incorrectly zeroRemoval of additionalPsbt parameter prevents accidental combination of an unvalidated extra PSBT into the effective PSBTPer-input signature progress tracking refined to avoid prematurely counting aggregate signatures
89b8f49cby rockstardev+109−102 files
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Informational 15 AI analysisMessage 45 · Thin
BT BTCPay ServerBTCPay Server BitcoinLightning NetworkPayment infrastructure

Simplify pending finalization failure logs

This commit is a minor code cleanup that simplifies how BTCPay Server writes log messages when a pending multi-signature transaction fails to finalize. It removes the list of failed input indexes from the log and merges two nearly identica…

7e71c45eby rockstardev+11−271 file
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Low 35 AI analysisMessage 50 · Thin
BT BTCPay ServerBTCPay Server BitcoinLightning NetworkPayment infrastructure

Bound pending multisig signature history

This change tightens how BTCPay Server stores signature attempts for multi-signature Bitcoin transactions. Previously, every submitted PSBT (a partially signed transaction file) was kept in history, even if it added no real progress. Now o…

Unbounded history/list growth bounded by logical retention gateResource consumption / storage abuse vector mitigatedLogic change in multi-signature signature collection path
eb0f15caby rockstardev+32−242 files
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Informational 15 AI analysisMessage 45 · Thin
BT BTCPay ServerBTCPay Server BitcoinLightning NetworkPayment infrastructure

Log pending transaction finalization errors

This commit only adds more detailed logging when a pending multi-signature Bitcoin transaction fails to finalize. It does not change how transactions are validated, authorized, or executed. There is no security vulnerability being fixed he…

c3fe1d7bby rockstardev+29−41 file
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Low 42 AI analysisMessage 50 · Thin
BT BTCPay ServerBTCPay Server BitcoinLightning NetworkPayment infrastructure

Fix pending multisig signature retries

This commit fixes a bug in BTCPay Server's multisig transaction handling. Previously, the service could get stuck in a 'Pending' state even when enough valid signatures had been collected, because it discarded new signature submissions tha…

Logic flaw in multisig signature collection could leave transactions permanently pending despite sufficient valid signaturesPreviously ignored distinct PSBTs that did not immediately increase signature progressMissing retry of transaction finalization after collecting additional signatures
ebeafc5aby rockstardev+153−182 files
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Informational 15 AI analysisMessage 0 · Opaque
BT BTCPay ServerBTCPay Server BitcoinLightning NetworkPayment infrastructure

Fix typo

This commit changes one word in the project's changelog, adding the word 'the' to a bullet point. It is a grammatical typo fix with no effect on software behavior, security, or user data.

2ed0fa17by Nicolas Dorier+1−11 file
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Low 40 AI analysisMessage 58 · Thin
BT BTCPay ServerBTCPay Server BitcoinLightning NetworkPayment infrastructure

Add race condition safe InvoiceRepository.UpdateMetadata (#7475)

This commit changes how BTCPay Server stores invoice comments and metadata. Previously, comments were saved in a separate field and could be updated with a method that was not safe when multiple requests happened at the same time. The patc…

Commit title explicitly describes a race condition fixReplaced read-modify-write metadata update with atomic PostgreSQL jsonb_set operationRemoved dedicated API 'comment' field, narrowing update surface
5664bd41by Nicolas Dorier+51−9010 files
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Security candidateRefactoring of Webhooks and Email Rules (#6954)by Nicolas Dorier · e8282ca8 · Oct 19, 2025 · 101 filesMessage 53 · ThinLow 27Details
Commit message · Nicolas Dorier

Refactoring of Webhooks and Email Rules (#6954)

53/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Links an issue, advisory, or supporting reference! No meaningful explanatory body
Why it was queued
signing or wallet pathboot or update path
AI analysis · Low 27/100

This is a large refactoring commit that moves BTCPay Server's webhook and email-rule features into separate plugin areas and introduces a new database-backed email-rule system with JSONPath-based conditions. The changes are primarily structural: code is relocated, controllers are renamed, and a new TextTemplate helper is added for email interpolation. There is no explicit security fix or vulnerability disclosure in the commit message or diff, and no direct evidence of an exploitable bug is visible in the supplied materials.

Security candidateBetter error message on invalid PSBT in Sign with Seed (#6920)by Nicolas Dorier · fa29176a · Sep 18, 2025 · 2 filesMessage 81 · StrongInformational 23Details
Commit message · Nicolas Dorier

Better error message on invalid PSBT in Sign with Seed (#6920)

* Better error message on invalid PSBT in Sign with Seed

* Improve error reporting if a PSBT built by SendWallet is not signable

81/100 · StrongMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context✓ Links an issue, advisory, or supporting reference
Why it was queued
signing boundarysigning or wallet path
AI analysis · Informational 23/100

This commit improves error messages shown to users when a Bitcoin transaction file (PSBT) cannot be signed because it is malformed or missing required data. It does not change the underlying signing rules; it only reports failures more clearly and redirects the user to an analysis view instead of attempting to sign an invalid PSBT. There is no direct evidence this fixes an exploitable vulnerability.