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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
322commits · 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 20 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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Lower-prioritybuild(core/rust): use `dev` profile for debug builds of emulatorby matejcik · ed435ab9 · Jan 5, 2026 · 1 fileMessage 85 · StrongInformational 15Details
Commit message · matejcik

build(core/rust): use `dev` profile for debug builds of emulator

this enables debug_assert!s and other internal checks for detectable UBs
that are omitted in a release build

[no changelog]

85/100 · StrongMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides detailed explanatory context
AI analysis · Informational 15/100

This commit changes how the Trezor emulator's Rust code is compiled. It makes debug builds use the Rust 'dev' profile (which keeps extra internal safety checks) not only when an explicit debug flag is set, but also whenever the firmware is built with Python optimizations disabled (PYOPT='0'). This is a build-hardening change for the emulator/debug environment and does not alter runtime behavior of production devices or introduce a security vulnerability.

Security candidatechore: bump versionsby obrusvit · 93625062 · Jan 5, 2026 · 10 filesMessage 55 · ThinInformational 15Details
Commit message · obrusvit

chore: bump versions

core -> 2.9.8
secmon -> 1.0.7
legacy -> 1.14.1

[no changelog]

55/100 · ThinMessage clarity
✓ Subject identifies a change✓ Uses a recognizable type or scope✓ Provides an explanatory body
Why it was queued
signing or wallet pathboot or update path
AI analysis · Informational 15/100

This commit only updates version numbers and translation metadata across the Trezor firmware repository. It does not change any executable code, fix any behavior, or alter security logic. There is nothing in the diff that introduces or fixes a security issue.

Lower-prioritychore(tools): generate `ts-tvl` config with `riscv_fw_version`by M1nd3r · c53b41f8 · Jan 2, 2026 · 2 filesMessage 62 · AdequateInformational 15Details
Commit message · M1nd3r

chore(tools): generate `ts-tvl` config with `riscv_fw_version`

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 is a routine tooling update. It adds a new configuration field called `riscv_fw_version` to a script that generates test configuration files for the Tropic secure element model. The generated value is a simple, hard-coded version number (1.0.0). There is no indication this change fixes or introduces a security vulnerability.

Security candidatetest(core): change `key_index` used in `crypto.tropic::test_sign` unittestby M1nd3r · 2ea5146f · Jan 2, 2026 · 1 fileMessage 72 · AdequateInformational 15Details
Commit message · M1nd3r

test(core): change `key_index` used in `crypto.tropic::test_sign` unittest

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
cryptography-sensitive path
AI analysis · Informational 15/100

This commit only changes a test file for the Tropic cryptographic module. It swaps the hardcoded key index from 0 to 31 in a unit test. There is no change to production firmware code, no security fix, and no vulnerability being introduced or patched.

Lower-prioritytests(core): fix imports in python unit testsby M1nd3r · 66822c34 · Jan 2, 2026 · 12 filesMessage 70 · AdequateInformational 15Details
Commit message · M1nd3r

tests(core): fix imports in python unit tests

- remove redundant imports (utils, unittest)
- unify import `from common import`

70/100 · AdequateMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Provides an explanatory body✓ Mentions testing or verification
AI analysis · Informational 15/100

This commit only cleans up import statements in Python unit test files. It removes redundant imports and switches some files to use a wildcard import from a shared test helper. There is no change to the actual firmware code that runs on Trezor devices, so this cannot affect device security or user funds.

Lower-prioritychore: add changelogby M1nd3r · 34e57225 · Jan 2, 2026 · 2 filesMessage 40 · ThinInformational 15Details
Commit message · M1nd3r

chore: add changelog

40/100 · ThinMessage clarity
✓ Subject identifies a change✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This commit only adds two changelog files stating that a third-party library called libtropic was updated to version 3.0.0. There is no actual code change, no bug fix, and no security patch in the diff itself.

Lower-prioritychore(core): adjust core to be compatible with libtropic 3.0.0by M1nd3r · 93756a24 · Jan 2, 2026 · 8 filesMessage 62 · AdequateInformational 15Details
Commit message · M1nd3r

chore(core): adjust core to be compatible with libtropic 3.0.0

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 is a routine compatibility update so the Trezor firmware builds and works with version 3.0.0 of an external chip library called libtropic. It renames constants, updates function signatures, swaps some source files in the build lists, and removes a couple of manual mode checks that are no longer needed. There is no indication this fixes a security vulnerability or introduces one.

Lower-prioritychore(core): replace `lt_port_unix_tcp` by `libtropic_port_posix_tcp` for emulatorby M1nd3r · f977099a · Jan 2, 2026 · 2 filesMessage 62 · AdequateInformational 15Details
Commit message · M1nd3r

chore(core): replace `lt_port_unix_tcp` by `libtropic_port_posix_tcp` for emulator

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 is a routine build-system and source-code rename. It swaps one emulator-only networking helper from the libtropic library for an equivalent one with a different filename. There is no functional change visible in the diff and no security relevance is stated.

Lower-prioritychore(vendor): update ts-tvl to version 2.3by M1nd3r · 393c68bf · Jan 2, 2026 · 1 fileMessage 57 · ThinInformational 3Details
Commit message · M1nd3r

chore(vendor): update ts-tvl to version 2.3

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 3/100

This commit updates a third-party vendor component called ts-tvl from one version to version 2.3. The actual code changes are not visible because the diff was not provided, so we cannot tell whether this update fixes a security issue, adds a feature, or is purely routine maintenance.

Lower-prioritychore(core): remove unnecessary definition of `USE_TREZOR_CRYPTO`by M1nd3r · 269f55f8 · Jan 2, 2026 · 1 fileMessage 62 · AdequateInformational 15Details
Commit message · M1nd3r

chore(core): remove unnecessary definition of `USE_TREZOR_CRYPTO`

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 one-line cleanup change that removes an unused compiler flag from the build configuration for a Trezor emulator model. It does not change any runtime code, security logic, or cryptographic behavior. There is no indication this is a security fix.

Lower-prioritychore(core) ensure success of tropic_init for emulatorby M1nd3r · d1377731 · Jan 2, 2026 · 1 fileMessage 50 · ThinInformational 18Details
Commit message · M1nd3r

chore(core) ensure success of tropic_init for emulator

50/100 · ThinMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component! No meaningful explanatory body
AI analysis · Informational 18/100

This change makes the Trezor software emulator stop with a clear error message if a component called 'tropic' fails to initialize, instead of silently continuing. It is a hardening improvement for the emulator build, not a fix for a known exploitable vulnerability in real devices.

Lower-prioritychore(core): use fixed `TROPIC_SLOT_MAX_SIZE_V1`by M1nd3r · 853e2a03 · Jan 2, 2026 · 5 filesMessage 80 · StrongLow 25Details
Commit message · M1nd3r

chore(core): use fixed `TROPIC_SLOT_MAX_SIZE_V1`

- size fixed to 444 B for backwards compatibility with tropic
Application FW <2 Since the version 2.0.0, 475 B can be utilized from
each slot.

80/100 · StrongMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides detailed explanatory context
AI analysis · Low 25/100

This commit changes how Trezor firmware talks to a Tropic secure chip. It replaces a larger, possibly variable slot size (R_MEM_DATA_SIZE_MAX, 475 bytes) with a fixed smaller size (TROPIC_SLOT_MAX_SIZE_V1, 444 bytes) for backwards compatibility with older Tropic firmware. The change is described as a compatibility fix, not a security fix. It adds a compile-time size check to make sure a KEK mask buffer still fits in the smaller slot. There is no direct evidence in the commit of an exploitable vulnerability, but using a smaller fixed size reduces the risk of mismatched buffer sizes between the Trezor and Tropic chip.

Lower-prioritychore(vendor): update libtropic to 3.0.0by M1nd3r · f5ff0616 · Jan 2, 2026 · 1 fileMessage 57 · ThinInformational 10Details
Commit message · M1nd3r

chore(vendor): update libtropic to 3.0.0

[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 10/100

This commit updates a bundled third-party library called libtropic from one version to another. No code changes are visible in the commit itself, and no security-related explanation is provided. There is not enough information to determine whether this update fixes a security issue, adds a feature, or is routine maintenance.

Lower-prioritychore(core): use `memzero` wrapper instead of `lt_secure_memzero`by M1nd3r · 9e853f72 · Jan 2, 2026 · 6 filesMessage 62 · AdequateInformational 19Details
Commit message · M1nd3r

chore(core): use `memzero` wrapper instead of `lt_secure_memzero`

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 19/100

This is a small cleanup change in Trezor's firmware build setup. It swaps one secure-memory-wiping helper for another equivalent one already used elsewhere in the project. There is no direct evidence this fixes a security bug; it appears to be a routine code-maintenance chore.

Lower-prioritychore(core): add `crypto_ctx` to `tropic_driver_t`by M1nd3r · 469337cd · Jan 2, 2026 · 1 fileMessage 62 · AdequateInformational 15Details
Commit message · M1nd3r

chore(core): add `crypto_ctx` to `tropic_driver_t`

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 small code maintenance change in Trezor firmware for a secure chip driver. It adds a new cryptographic context field to an internal data structure and wires it into an existing library handle. There is no indication this fixes or introduces a security vulnerability; it appears to be routine plumbing needed by an updated external library (libtropic).

Lower-priorityfix(ci): run and build emulators with the same ts-tvl config as firmwareby M1nd3r · adf3a598 · Jan 2, 2026 · 1 fileMessage 62 · AdequateInformational 13Details
Commit message · M1nd3r

fix(ci): run and build emulators with the same ts-tvl config as firmware

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
documentation-only discount
AI analysis · Informational 13/100

This is a routine CI (Continuous Integration) maintenance change for Trezor firmware. It updates how automated test servers are configured so that test emulators use the same configuration file as the real firmware tests. There is no indication this fixes a security vulnerability or affects end-user devices.

Lower-priorityfix(core): raise `DataError` in THP pairingby M1nd3r · b0c3be9b · Jan 2, 2026 · 3 filesMessage 80 · StrongLow 29Details
Commit message · M1nd3r

fix(core): raise `DataError` in THP pairing

- Receipt of messages with invalid data fields during pairing now results in `Failure` with code `DataError` instead of code `FirmwareError`.

[no changelog]

80/100 · StrongMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides detailed explanatory context
AI analysis · Low 29/100

This commit changes how the Trezor hardware wallet reports certain pairing errors. Previously, invalid data sent during the Trezor-Host Pairing (THP) process triggered an internal 'FirmwareError' code. Now it returns a more appropriate 'DataError' code. This is mainly a correctness and user-experience improvement: callers see a clearer error and are less likely to mistake bad host input for a device firmware bug. It does not appear to fix a memory corruption, bypass, or direct asset-stealing vulnerability.

Security candidatefix(bolt,caesar,eckhart): incorrect and missing address chunkificationby PrisionMike · 9b99395e · Dec 30, 2025 · 5 filesMessage 85 · StrongLow 34Details
Commit message · PrisionMike

fix(bolt,caesar,eckhart): incorrect and missing address chunkification

- Adds missing chunkification in Bolt and Caesar.
- Fixes edge cases where chunks were overwritten or composed
incorrectly.

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
cryptography-sensitive path
AI analysis · Low 34/100

This commit fixes how cryptocurrency addresses are visually grouped into chunks on Trezor device screens for several wallet models. Previously, addresses could be displayed with missing or incorrect spacing, which might make it harder for users to visually verify an address before approving a transaction. The fix changes the low-level text layout code and passes the chunking option through two user-interface layouts. It is a display/rendering bug fix rather than a cryptographic flaw, but because address verification is a key anti-phishing step, any display issue has security relevance.

Security candidatefix(core/caesar): fix wordquiz ordinal formattingby obrusvit · 43d0f088 · Dec 30, 2025 · 4 filesMessage 57 · ThinInformational 15Details
Commit message · obrusvit

fix(core/caesar): fix wordquiz ordinal formatting

[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 is a cosmetic wording fix for the Trezor hardware wallet's backup quiz screen. It changes how the device labels the word the user must select, switching from English-style ordinal text like '2nd' to a neutral '2 of 20' format. There is no security issue here; it is purely a user-interface and localization improvement.

Lower-priorityfeat(core): allow loading translations with different BUILD_VERSIONby Roman Zeyde · 963858c7 · Dec 29, 2025 · 4 filesMessage 62 · AdequateInformational 18Details
Commit message · Roman Zeyde

feat(core): allow loading translations with different BUILD_VERSION

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 relaxes a version check so that Trezor devices can load translation (language) files even when the translation file's build number differs from the firmware's build number. Previously, the version had to match exactly, which could block users from changing languages after a small firmware update. The change still requires the major, minor, and patch version numbers to match, and it adds a check that the version field is exactly four parts long. There is no direct security vulnerability here; it is a usability fix.

Security candidatefeat(core/eckhart): update Regulatory screenby obrusvit · 4f31a2f6 · Dec 29, 2025 · 47 filesMessage 57 · ThinInformational 15Details
Commit message · obrusvit

feat(core/eckhart): update Regulatory screen

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 updates the regulatory information screen on the Trezor T3W1 hardware wallet. It adds new country certification icons, reorganizes the order of regions shown, and displays the device's production year on the South Korea page. There is no security-relevant change here—only user-interface text, images, and layout.

Security candidatefix(bolt): webauthn credential scrollingby Ioan Bizău · 024b883a · Dec 29, 2025 · 2 filesMessage 57 · ThinInformational 18Details
Commit message · Ioan Bizău

fix(bolt): webauthn credential scrolling

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
credential or privilege state
AI analysis · Informational 18/100

This commit fixes a UI bug in the Trezor hardware wallet where scrolling through FIDO/WebAuthn credentials could behave incorrectly. The change updates the displayed account name in place rather than recreating the whole text element each time the page changes. There is no direct evidence this is a security vulnerability; it appears to be a user-experience fix for on-screen credential navigation.

Lower-priorityfix(core): properly configure mpu in power management interruptsby tychovrahe · 500ed25b · Dec 28, 2025 · 2 filesMessage 62 · AdequateLow 41Details
Commit message · tychovrahe

fix(core): properly configure mpu in power management interrupts

[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 · Low 41/100

This commit fixes how the hardware's memory protection unit (MPU) is set up inside two power-management interrupt handlers. Before the fix, these interrupt routines may have run with the wrong MPU configuration, which could allow them to access memory regions they shouldn't or, conversely, crash because a needed region was blocked. The patch now switches the MPU to a safe default mode at the start of each interrupt and restores the previous mode before returning.

Lower-priorityfix(core): make sure `SwipeFlow` sends `ButtonRequest` on attachby Roman Zeyde · e67a5fa8 · Dec 23, 2025 · 2 filesMessage 100 · StrongInformational 17Details
Commit message · Roman Zeyde

fix(core): make sure `SwipeFlow` sends `ButtonRequest` on attach

Otherwise, recovery device tests fail on Delizia, due to `repeated_button_request(Other, "show_shares")`.

[no changelog]

100/100 · StrongMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides detailed explanatory context✓ Explains rationale or failure mode✓ Mentions testing or verification
AI analysis · Informational 17/100

This is a small UI bug fix in the Trezor hardware wallet firmware. It ensures that when a user swipes between on-screen pages, the device correctly sends a 'ButtonRequest' event at the moment a new page is attached. Without this, automated tests for the device recovery process failed on the newer 'Delizia' screen layout because the expected button request was missing or duplicated. There is no indication this allows theft of funds, bypass of security, or user data exposure.

Security candidatefix(core): correct `debug_assert` in `get_button_border()`by Roman Zeyde · 54d6bfad · Dec 23, 2025 · 1 fileMessage 77 · AdequateInformational 18Details
Commit message · Roman Zeyde

fix(core): correct `debug_assert` in `get_button_border()`

There are `MAX_KEYS` buttons + the `cancel` button.

[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
boot or update path
AI analysis · Informational 18/100

This commit fixes an off-by-one error in a debug-only assertion inside a Trezor hardware wallet screen. The assertion checks whether a button index is valid, but it previously rejected the last valid button (the 'cancel' button). The fix changes '<' to '<=' so the assertion no longer falsely triggers. This is a minor correctness fix in debug builds and does not change release behavior or user-facing security.