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Trezor firmware

Firmware monorepo for Trezor One, Model T, and Safe devices.

BitcoinHardware walletsNormal
Repository coverage

2667 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.

921security candidates311second-pass queue2660AI analyses
329commits · 30 days
549commits · 60 days
1358commits · 180 days
2638commits · 365 days
Backfill bands
Aug 5 → Feb 61298 seen115 candidatesComplete
Feb 6 → Jun 6775 seen58 candidatesComplete
Jun 6 → Jul 6217 seen13 candidatesComplete
Jul 6 → Aug 5360 seen54 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.

66/100 average clarity
478Strong · 80–100
1321Adequate · 60–79
863Thin · 40–59
5Opaque · 0–39
Read the scoring rubric →
Developer activity

Who is changing the project?

Public Git author strings; identities are not independently verified.

DeveloperCommitsCandidatesAnalyzedHigh riskMessage avg.
tychovrahe292104292461
Roman Zeyde577181575272
PrisionMike945994273
Andrew Kozlik712470265
obrusvit21376213164
Jakub Janků22919182
Martin Pastyřík23823173
cepetr19682196059
Ioan Bizău23076230059
M1nd3r20772207071
Lukas Bielesch846784067
Martin Milata17446174063
Analysis record

Published AI watches

Last scanned 14 minutes ago

Low 27 AI analysisMessage 93 · Strong
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(core): digest EIP-1559/EIP-7702 magic without RLP encoding

This commit is a small internal cleanup in Trezor's Ethereum signing code. It changes how two special 'magic' bytes (the transaction type markers for newer Ethereum transaction formats) are fed into the cryptographic hash. Previously the c…

Refactor of cryptographic hashing path for Ethereum transaction signingRemoval of implicit assumption that RLP encodes small integers as single bytesChange affects EIP-1559 and EIP-7702 transaction type markers
2362bc6fby Roman Zeyde+6−32 files
No security note in commit
Informational 15 AI analysisMessage 98 · Strong
TZ TrezorTrezor firmware BitcoinHardware wallets

test(core): test RLP self-encoding bytestrings

This commit only adds a new unit test to the Trezor firmware codebase. It verifies that very short Ethereum RLP-encoded byte strings and small positive integers encode to themselves, which is a known property of the RLP specification. No p…

41538733by Roman Zeyde+16−01 file
No security note in commit
Informational 18 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

chore(core): remove sha1 from regular FW

This commit removes the SHA-1 hashing function from the regular Trezor firmware. SHA-1 is an old, weak hash algorithm that is no longer considered secure for sensitive uses. The change deletes the code that exposes SHA-1 to apps running on…

Removal of a deprecated cryptographic primitive (SHA-1) from the firmware API surfaceReduction of attack surface and prevention of future misuse of a collision-vulnerable hashNo direct vulnerability patch or memory-safety bug is present in the diff
16d15774by M1nd3r+0−2006 files
No security note in commit
Low 27 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(crypto): pass static public key to `noise_xxpsk3_*_init()`

This commit changes how a cryptographic library sets up secure connections. Previously, the code automatically calculated the public key from the private key. Now, the caller must provide the public key directly. This is a code-quality ref…

Cryptographic key handling changed: public key is now supplied rather than derivedPotential reduction of key-mismatch risk if caller provides correct public keyNew null-pointer check added for static_public_key
1b3128a4by Ondřej Vejpustek+20−92 files
No security note in commit
Informational 15 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(crypto): change order of parameters

This commit simply reorders the arguments of an internal function called dh() and updates every place that calls it. The actual math and security behavior are unchanged; it is a code cleanup with no security effect.

33a119eeby Ondřej Vejpustek+15−151 file
No security note in commit
Informational 15 AI analysisMessage 47 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(crypto): prefix enums

This commit simply renames two groups of internal status labels (called enums) in the Trezor firmware's cryptographic code. The old names like WAITING_FOR_REQUEST1 were shared between two different parts of the code, so the developer gave …

f1c74046by Ondřej Vejpustek+26−222 files
No security note in commit
Low 37 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

fix(crypto): prevent calling `memzero(NULL, ...)`

This commit fixes three places in the Trezor firmware's cryptographic code where a memory-clearing function could be called with a NULL pointer. In practice, passing NULL to memzero is harmless on Trezor's platform (it does nothing), but i…

NULL pointer passed to memory-zeroing helper in cryptographic codeUndefined behavior in C standard library contractDefensive hardening in Noise protocol implementation
0394e934by Ondřej Vejpustek+11−51 file
No security note in commit
Informational 18 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(crypto): return remote static key from `noise_xxpsk3_*_handle_*()`

This commit is a code cleanup (refactor) for the cryptographic handshake code used in Trezor devices. It changes how the other party's long-term public key is returned to the caller: instead of storing it inside an internal state structure…

Removal of long-term public key storage from internal handshake stateCaller-supplied output buffer for remote static public key reduces internal secret retentionError-path memzero of returned key material on failure
3ead1aa6by Ondřej Vejpustek+79−423 files
No security note in commit
Informational 15 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(xtask): rename ProjectProfile to ProjectConfig

This commit is a simple rename from 'ProjectProfile' to 'ProjectConfig' in two Rust source files. It only changes variable names, struct names, and error messages. There is no change to program logic, security behavior, or how data is hand…

581b37bcby cepetr+18−182 files
No security note in commit
Informational 15 AI analysisMessage 47 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(xtask): introduce ResolvedBuildArgs

This commit is a straightforward internal code refactor in Trezor's build tooling. It introduces a new ResolvedBuildArgs structure that centralizes default values for command-line build options before they are used. There is no change to u…

c24d1be8by cepetr+99−295 files
No security note in commit
Informational 15 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(xtask): make build args tristate

This commit is a straightforward internal refactor of the Trezor firmware build tool's command-line argument handling. It changes many on/off flags from plain booleans to optional booleans so they can explicitly be set to true, false, or l…

271e249aby cepetr+57−561 file
No security note in commit
Informational 15 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(xtask): introduce build options

This commit is a straightforward internal code reorganization in Trezor's build tooling. It moves build-option definitions from one Rust source file to a new module and adds the ability to load those options from a configuration file. Ther…

75085e2aby cepetr+275−2007 files
No security note in commit
Informational 15 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

feat(xtask): introduce build presets

This commit is a developer tooling change for the Trezor firmware build system. It introduces 'build presets'—named configuration bundles stored in TOML files—so developers can select common build settings with a single command-line flag i…

eefe8f7fby cepetr+397−419 files
No security note in commit
Informational 15 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

feat(xtask): upgrade manifest.yaml for tf-tools 0.3.0

This commit is a routine update to a build-system manifest file used by Trezor's internal tooling. It reorganizes and re-labels feature flags (for example, moving options between 'Features', 'Debugging', and 'Signing' groups and simplifyin…

57b28b89by cepetr+86−1351 file
No security note in commit
Informational 15 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

feat(core): add tf-tools 0.3.1+ configuration file

This commit adds a single configuration file for a Trezor developer tool (a VS Code extension). It only points the tool to existing folders in the repository and contains no executable code, no secrets, and no changes to firmware behavior.…

e554f618by cepetr+8−01 file
No security note in commit
Informational 15 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(xtask): rename ResolvedBuild to ResolvedBuildFeatures

This commit is a simple internal code cleanup: it renames a Rust data structure called ResolvedBuild to ResolvedBuildFeatures and updates the places that use it. There are no functional changes, no security fixes, and no changes to how the…

aaa2780bby cepetr+5−52 files
No security note in commit
Informational 15 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

fix(core): fix up clippy warnings in storage.rs

This is a tiny code cleanup commit that replaces two calls to `ptr::null()` with Rust's `unwrap_or_default()` to silence automated Clippy lint warnings. It does not change what value is produced (still a null pointer when no salt is provid…

62354461by cepetr+2−21 file
No security note in commit
Informational 15 AI analysisMessage 47 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(xtask): simplify dependencies

This commit is a straightforward internal code cleanup in Trezor's build tooling. It moves a data structure and two helper methods from one Rust source file to another and updates callers accordingly. There is no change to user-facing beha…

6268349fby cepetr+9−193 files
No security note in commit
Informational 15 AI analysisMessage 47 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

docs: add xtask documentation

This commit only adds documentation. It updates the table of contents and adds a new markdown page plus a diagram explaining the project's 'xtask' build helper. No code, build scripts, or firmware logic was changed, so it cannot introduce …

4879dababy cepetr+296−03 files
No security note in commit
Informational 17 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

feat(xtask): introduce project-toml build-options

This commit is a build-system refactoring for Trezor firmware. It moves the mapping of command-line build options to Rust/cargo features out of hard-coded Rust logic and into per-project TOML files. It also adds a small change so debug bui…

Build-option mapping now lives in project.toml files, increasing the attack surface for supply-chain/build-configuration tamperingMakefile change automatically enables debug-link for PYOPT=0 debug buildsValidation added to reject storage_insecure_testing_mode in production builds
d44de007by cepetr+681−40817 files
No security note in commit
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Explore captured commits

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AI review queuedtest(core/tron): add `yield` for cancellation input flowby Roman Zeyde · a26c0d3e · Feb 26, 2026 · 1 fileMessage 72 · AdequateInformational 15Details
Commit message · Roman Zeyde

test(core/tron): add `yield` for cancellation input flow

[no changelog]

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 or wallet pathsecond-pass: security-sensitive path
AI analysis · Informational 15/100

This commit only changes a test file for the Tron cryptocurrency signing feature. It adds 'yield' statements to the test's simulated button-pressing sequence so the test properly waits between simulated user actions. There is no change to the actual Trezor firmware code that users run, and no security fix or vulnerability is present in the diff.

Security candidatechore(core): bump version to 2.11.0by Roman Zeyde · 83cae339 · Feb 25, 2026 · 8 filesMessage 72 · AdequateInformational 15Details
Commit message · Roman Zeyde

chore(core): bump version to 2.11.0

Following secmon downgrade protection (e2bfa90870).

[no changelog]

72/100 · AdequateMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides an explanatory body
Why it was queued
update trustsigning or wallet pathboot or update path
AI analysis · Informational 15/100

This commit is a routine version bump from 2.10.2 to 2.11.0 for the Trezor firmware. It only changes version numbers in a header file and translation metadata, plus updates the signed translation package fingerprint. There are no code behavior changes, bug fixes, or security patches in this diff itself.

Security candidaterefactor(core): split secret, make it optional, add compile flags based on presenceby tychovrahe · 520f9ab7 · Feb 25, 2026 · 39 filesMessage 62 · AdequateLow 34Details
Commit message · tychovrahe

refactor(core): split secret, make it optional, add compile flags based on presence

[no changelog]

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
Why it was queued
boot or update path
AI analysis · Low 34/100

This commit reorganizes how Trezor firmware handles secret keys and the 'secret' subsystem. It splits key-handling code into a new optional component (secret_keys), adds compile-time flags (USE_SECRET and USE_SECRET_KEYS) so different device models can include or exclude these features, and updates the build configuration for every supported model. The change is a structural refactor, not a direct security fix, but it touches sensitive code paths that protect device secrets and storage encryption.

Lower-priorityfeat(core/prodtest): allow resetting the secret storage in non-production buildsby tychovrahe · a150eee9 · Feb 25, 2026 · 4 filesMessage 62 · AdequateInformational 18Details
Commit message · tychovrahe

feat(core/prodtest): allow resetting the secret storage in non-production builds

[no changelog]

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 18/100

This commit adds a new factory-testing command called secrets-reset that erases the device's secret storage area. It is only compiled into non-production (debug/test) builds, so it cannot be used on normal consumer Trezor devices. The change exposes an internal erase function so the test tool can call it.

Security candidatebuild(core): exclude src if feature not availableby obrusvit · a701a487 · Feb 24, 2026 · 2 filesMessage 80 · StrongInformational 15Details
Commit message · obrusvit

build(core): exclude src if feature not available

- exclude authenticate_device if Optiga not present (i.e. T2T1)
- exclude set_backlight if backlight feature not available (i.e.
T2B1/T3B1)
- the handlers for these files were already correctly excluded from
`workflow_handlers.py`

[no changelog]

80/100 · StrongMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides detailed explanatory context
Why it was queued
boot or update path
AI analysis · Informational 15/100

This is a routine build-system cleanup for the Trezor hardware wallet firmware. It makes sure that certain device-specific source files (for example, code that talks to a security chip called Optiga, or code that adjusts screen backlight) are only included in firmware builds for devices that actually have those hardware features. There is no indication this fixes a security vulnerability or changes runtime behavior on supported devices.

Lower-prioritychore(core/ui): update UI fixturesby Roman Zeyde · 0bfd42a0 · Feb 23, 2026 · 1 fileMessage 57 · ThinInformational 15Details
Commit message · Roman Zeyde

chore(core/ui): update UI fixtures

[no changelog]

57/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This commit only updates a test data file (tests/ui_tests/fixtures.json) containing expected hash values for automated UI tests. It does not change any actual firmware, application, or security code. There is no indication this is a security fix or that it affects any user-facing behavior.

AI review queuedchore(translations): sync Crowdin translations [no changelog]by Michal Kazda · 8ff1930d · Feb 23, 2026 · 6 filesMessage 77 · AdequateInformational 15Details
Commit message · Michal Kazda

chore(translations): sync Crowdin translations
[no changelog]

77/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides an explanatory body
Why it was queued
signing or wallet pathtranslation-only discountsecond-pass: security-sensitive path
AI analysis · Informational 15/100

This commit is a routine synchronization of translated user-interface text strings for the Trezor hardware wallet firmware. It updates Czech, German, Spanish, French, and Portuguese translation files, plus their signature file, with wording changes, additions, and removals. There is no code logic change, no security fix, and no indication of a vulnerability.

Lower-prioritytest(core): allow restarting core models via DebugLinkby Roman Zeyde · eeb134fa · Feb 23, 2026 · 3 filesMessage 95 · StrongInformational 19Details
Commit message · Roman Zeyde

test(core): allow restarting core models via DebugLink

It is used for testing backup failures (see #6348).

[no changelog]

95/100 · StrongMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides an explanatory body✓ Mentions testing or verification✓ Links an issue, advisory, or supporting reference
AI analysis · Informational 19/100

This commit adds a test-only debug feature that lets automated tests restart the Trezor device's main software loop. It is not a normal user feature and only works through the special DebugLink interface used during testing. The change is explicitly for improving backup-failure tests and is marked with '[no changelog]', meaning it is not intended for end users.

AI review queuedfix(core): ignore unexpected messages in backup flowby Roman Zeyde · 46cee0ae · Feb 23, 2026 · 7 filesMessage 77 · AdequateLow 48Details
Commit message · Roman Zeyde

fix(core): ignore unexpected messages in backup flow

I/O errors and timeouts are not handled.

77/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides an explanatory body
Why it was queued
parser or protocol pathsecond-pass: security-sensitive path
AI analysis · Low 48/100

This update changes how the Trezor hardware wallet handles unexpected messages while creating a seed backup. Previously, stray or hostile messages (such as a 'Cancel' command) could interrupt the backup process and leave the wallet in an unclear or partially-backed-up state. The fix wraps the backup flow in a new 'continue on errors' mode that ignores unexpected traffic and tells the host the device is busy, so the backup runs to completion. The change is defensive and improves reliability, but it also means a user can no longer cancel a backup from the host side once it has started.

Lower-priorityci: consider secfix/ as release branches tooby Martin Milata · 49876432 · Feb 23, 2026 · 4 filesMessage 57 · ThinInformational 18Details
Commit message · Martin Milata

ci: consider secfix/ as release branches too

57/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
Why it was queued
documentation-only discount
AI analysis · Informational 18/100

This commit updates Trezor's GitHub CI automation so that branches whose names start with 'secfix/' are treated the same as release branches. It also tightens a couple of upload jobs so they only run in the official repository, and changes one commit-message check to run on any push. The change itself is about build/release plumbing, not a fix for a security bug in the firmware.

Security candidatefix(tron,ui): use fee_limit instead of max_fees.by PrisionMike · c59e11a5 · Feb 23, 2026 · 5 filesMessage 80 · StrongInformational 15Details
Commit message · PrisionMike

fix(tron,ui): use fee_limit instead of max_fees.

Tron specific labels.
Fixes: TRON: Use `Maximum Fees` instead of `Fee limit`
Fixes #6320

80/100 · StrongMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides an explanatory body✓ Links an issue, advisory, or supporting reference
Why it was queued
cryptography-sensitive path
AI analysis · Informational 15/100

This commit only changes the on-screen label shown to Trezor users when confirming TRON transactions. The text 'Maximum Fees' is replaced with 'Fee limit' to match TRON-specific terminology. No transaction logic, fee calculation, or security behavior is changed.

Security candidatefeat(tron): Release Tron features to prodby PrisionMike · f831cfb8 · Feb 23, 2026 · 11 filesMessage 57 · ThinInformational 15Details
Commit message · PrisionMike

feat(tron): Release Tron features to prod

57/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
Why it was queued
cryptography-sensitive pathboot or update path
AI analysis · Informational 15/100

This commit simply turns on Tron (TRX) support in Trezor firmware for all users. It moves Tron code from debug-only builds into normal production builds, updates support lists, and refreshes test snapshots. There is no bug fix or security patch here—just a feature release.

Security candidatefix(tron): Use new button request namesby PrisionMike · 30c4e53f · Feb 23, 2026 · 5 filesMessage 57 · ThinInformational 15Details
Commit message · PrisionMike

fix(tron): Use new button request names

[no changelog]

57/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
Why it was queued
cryptography-sensitive path
AI analysis · Informational 15/100

This commit simply renames internal labels used for Tron transaction confirmation screens across different Trezor device layouts. The old names like 'confirm_tron_send' are replaced with newer names like 'tron/send'. There is no visible security change—just keeping naming conventions consistent.

Lower-prioritychore(core/thp): update UI fixturesby Roman Zeyde · 201f557e · Feb 23, 2026 · 1 fileMessage 57 · ThinInformational 15Details
Commit message · Roman Zeyde

chore(core/thp): update UI fixtures

[no changelog]

57/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This commit only updates expected visual test snapshots (hashes) for pairing-code entry screens in the Trezor firmware test suite. No actual product code was changed, so it cannot introduce or fix a security vulnerability on its own.

Lower-priorityfix(core/thp): disable THP ACK piggybacking as a workaround for #6506by Roman Zeyde · 586df8a0 · Feb 23, 2026 · 3 filesMessage 93 · StrongLow 34Details
Commit message · Roman Zeyde

fix(core/thp): disable THP ACK piggybacking as a workaround for #6506

The underlying bug can also happen without THP ACK piggybacking but
with much lower probability (it requires >200ms THP ACK delay over USB).

[no changelog]

93/100 · StrongMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides detailed explanatory context✓ Links an issue, advisory, or supporting reference
AI analysis · Low 34/100

This commit temporarily disables a performance feature called 'THP ACK piggybacking' in Trezor firmware to reduce the chance of triggering an unrelated bug referenced as issue #6506. It is described as a workaround, not a complete fix. The underlying bug can still occur, but only if a network acknowledgment is delayed by more than 200 milliseconds. The change lowers the protocol version minor number from 1 to 0 and stops the device from enabling ACK piggybacking during the handshake. There is no direct evidence in the commit that this is a security vulnerability, and no changelog entry is added.

Lower-prioritytest(core/eckhart): simplify "Backup failed" notification testby Roman Zeyde · 59d0e66c · Feb 20, 2026 · 2 filesMessage 87 · StrongInformational 15Details
Commit message · Roman Zeyde

test(core/eckhart): simplify "Backup failed" notification test

The test can now start from "unfinished" backup state.

[no changelog]

87/100 · StrongMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides an explanatory body✓ Mentions testing or verification
AI analysis · Informational 15/100

This commit only changes an automated test for the Trezor hardware wallet. It simplifies how the test puts the device into a 'backup failed' state by starting from a pre-configured test fixture instead of manually running and cancelling a backup. No actual wallet firmware code or user-facing behavior is changed.

Lower-prioritychore(python): remove unused `_skip_init_device` flagby Roman Zeyde · 494afe2a · Feb 20, 2026 · 1 fileMessage 62 · AdequateInformational 15Details
Commit message · Roman Zeyde

chore(python): remove unused `_skip_init_device` flag

[no changelog]

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This is a minor cleanup change in the Python Trezor library. It removes an internal, underscore-prefixed flag called `_skip_init_device` that was not being used anywhere. The function now always refreshes device features after loading a device. There is no security issue here.

Security candidatetest: allow setting `unfinished_backup` flag in storageby Roman Zeyde · 131fde9c · Feb 20, 2026 · 8 filesMessage 72 · AdequateInformational 21Details
Commit message · Roman Zeyde

test: allow setting `unfinished_backup` flag in storage

[no changelog]

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
boot or update path
AI analysis · Informational 21/100

This commit adds a new test-only debug option called `unfinished_backup` to the Trezor hardware wallet's device-loading tools. It lets developers set an internal storage flag that marks a backup as incomplete. The change only affects debug/test code paths and does not alter normal user-facing wallet behavior. There is no indication in the commit that this fixes or introduces a security vulnerability.

AI review queuedfix: enforce Tron address padding in runtimeby obrusvit · d98c67b8 · Feb 20, 2026 · 1 fileMessage 57 · ThinModerate 61Details
Commit message · obrusvit

fix: enforce Tron address padding in runtime

[no changelog]

57/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
Why it was queued
signing or wallet pathsecond-pass: security-sensitive path
AI analysis · Moderate 61/100

This commit changes how Trezor handles Tron cryptocurrency smart-contract payments. Previously, the device used a programming assertion to assume that certain address-padding bytes were zero. Now it checks those bytes at runtime and rejects the transaction if the padding is wrong. The change likely prevents a malformed Tron token-transfer request from being misinterpreted or from causing the device to behave unexpectedly. It is a defensive hardening fix rather than a clear-cut remote exploit patch.

Lower-priorityrefactor(core): add type annotation to `spawn()` and `with_context()`by Roman Zeyde · 779670e2 · Feb 20, 2026 · 2 filesMessage 62 · AdequateInformational 15Details
Commit message · Roman Zeyde

refactor(core): add type annotation to `spawn()` and `with_context()`

[no changelog]

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This commit only adds Python type annotations to two internal functions. It does not change any runtime behavior, logic, or security checks in the Trezor firmware.

Lower-prioritychore(core): drop duplicate `TypeVar` definitionby Roman Zeyde · 378f7842 · Feb 20, 2026 · 1 fileMessage 57 · ThinInformational 15Details
Commit message · Roman Zeyde

chore(core): drop duplicate `TypeVar` definition

[no changelog]

57/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This commit removes a single duplicate TypeVar definition in a Python file used only during type checking. It has no effect on the actual running firmware and no security relevance.

AI review queuedrefactor(core): extract `ButtonRequest` handler into a separate methodby Roman Zeyde · 05292d3b · Feb 20, 2026 · 6 filesMessage 77 · AdequateInformational 19Details
Commit message · Roman Zeyde

refactor(core): extract `ButtonRequest` handler into a separate method

Also, add a `Context.read()` overload for unexpected messages.

[no changelog]

77/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides an explanatory body
Why it was queued
parser or protocol pathsecond-pass: security-sensitive path
AI analysis · Informational 19/100

This commit is a code cleanup that moves the handling of on-screen button prompts into a separate helper function and adds a way to tell the message-reading code to reject any unexpected message. The change itself does not appear to fix a specific security bug, but it touches the code that decides which messages the device accepts while a user is confirming an action. There is no vendor statement that this is a security fix, and no independent researcher is credited.

Lower-priorityfeat: Add tropic-capable emulator builds as subcategory in release workflowby danielhladik-sl · c8159f4a · Feb 20, 2026 · 1 fileMessage 85 · StrongInformational 15Details
Commit message · danielhladik-sl

feat: Add tropic-capable emulator builds as subcategory in release workflow

- Add tropic_models input to workflow_dispatch for model selection
- Expand get_models job to output tropic_models (defaults to T3W1)
- Add core_emu_tropic_capable job (x86) building with DISABLE_TROPIC=0
- Add core_emu_arm_tropic_capable job (arm64) building with DISABLE_TROPIC=0
- Tropic emulators uploaded to separate subdirectory (/{model}/{model}_tropic_on/)
- New emulators keep standard naming for consistency
- Tropic model list centralized for easy maintenance and configuration

85/100 · StrongMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides detailed explanatory context
Why it was queued
documentation-only discount
AI analysis · Informational 15/100

This commit is a routine GitHub Actions workflow update for Trezor firmware. It adds new build jobs that produce emulator binaries with a feature called 'Tropic' enabled, and uploads them to a separate folder. There is no indication of a security fix, vulnerability, or malicious change in the diff.

Lower-priorityfix(eckhart): use `account_title` if availableby Ioan Bizău · 1c7faa7e · Feb 20, 2026 · 1 fileMessage 57 · ThinInformational 15Details
Commit message · Ioan Bizău

fix(eckhart): use `account_title` if available

[no changelog]

57/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This is a one-line UI label change. The Trezor device screen previously showed a generic 'Account info' menu label when confirming a transaction summary; now it shows a caller-supplied account title if one is provided, falling back to the generic label otherwise. There is no security-relevant behavior change visible in the diff.

AI review queuedfix: testsby Ioan Bizău · e9f2c644 · Feb 20, 2026 · 2 filesMessage 12 · OpaqueInformational 13Details
Commit message · Ioan Bizău

fix: tests

[no changelog]

12/100 · OpaqueMessage clarity
✓ Uses a recognizable type or scope✓ Mentions testing or verification! Very short subject! Too few words to establish purpose! No meaningful explanatory body
Why it was queued
second-pass: opaque commit message
AI analysis · Informational 13/100

This commit only changes automated test helper code for Trezor hardware wallets. It adds a way for test scripts to run small callback steps while the test framework clicks through on-screen menus, and updates a few Ethereum transaction test flows to use that mechanism. There is no change to the actual wallet firmware, cryptography, user-facing behavior, or security boundaries.