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Trezor firmware

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

BitcoinHardware walletsNormal
Repository coverage

2673 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.

923security candidates311second-pass queue2662AI analyses
323commits · 30 days
552commits · 60 days
1337commits · 180 days
2644commits · 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
482Strong · 80–100
1323Adequate · 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 Zeyde579182576272
PrisionMike945994273
Andrew Kozlik712470265
obrusvit21376213164
Jakub Janků22919182
Martin Pastyřík24823173
cepetr19682196059
Ioan Bizău23076230059
M1nd3r20772207071
Lukas Bielesch846784067
Martin Milata17446174063
Analysis record

Published AI watches

Last scanned 24 minutes ago

Informational 15 AI analysisMessage 72 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

test(core/ethereum): EIP-7702 tuple nonce must be non-zero

This commit only changes test data and expected screen fingerprints for Trezor's Ethereum EIP-7702 signing tests. It replaces one test case that used a nonce of 0 with the same scenario using a nonce of 67, because the real-world protocol …

Test-only change with no production code modificationEIP-7702 tuple nonce constraint reflected in test dataExpected UI test hashes regenerated for renamed test vector
76cd2ed4by Roman Zeyde+28−282 files
No security note in commit
Informational 15 AI analysisMessage 85 · Strong
TZ TrezorTrezor firmware BitcoinHardware wallets

build(core): propagate emulator feature from projects

This commit is a build-system cleanup for the Trezor firmware's Rust code. It changes how the 'emulator' feature flag is passed between different software components. The firmware project no longer supports the emulator feature (which make…

5642074cby matejcik+5−44 files
No security note in commit
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
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Explore captured commits

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Security candidatechore(core): Allow backup check only when the backup existsby Lukas Bielesch · 94cda445 · Sep 24, 2025 · 5 filesMessage 62 · AdequateLow 41Details
Commit message · Lukas Bielesch

chore(core): Allow backup check only when the backup exists

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
cryptography-sensitive path
AI analysis · Low 41/100

This commit tightens when a Trezor device lets the user run a 'backup check' (also called a dry-run recovery). Previously, the device allowed the check as long as it was initialized, even if the seed had never been backed up, was marked as not needing a backup, or the backup was unfinished. The change now blocks the backup-check menu item and the RecoveryDevice dry-run command when no real backup exists. This prevents a user from being misled into thinking an unbacked-up seed is safe, and stops a dry-run from being started in states where it has no meaningful purpose.

Lower-priorityfix(core): adapt THP retransmission timeouts using recent ACK latencyby Roman Zeyde · 5c023f21 · Sep 23, 2025 · 3 filesMessage 62 · AdequateLow 35Details
Commit message · Roman Zeyde

fix(core): adapt THP retransmission timeouts using recent ACK latency

[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 35/100

This commit adjusts how a Trezor hardware wallet waits for acknowledgements during encrypted USB communication. It now measures how long the host computer recently took to reply and adds that estimate to the retry timer. The change is a reliability/performance fix, not a clear security patch, but it touches a sensitive part of the transport protocol that could affect denial-of-service or timing behavior.

Security candidatechore(core/eckhart): update regulatory screenby Lukas Bielesch · 34757382 · Sep 23, 2025 · 6 filesMessage 57 · ThinInformational 15Details
Commit message · Lukas Bielesch

chore(core/eckhart): update regulatory screen

[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
boot or update path
AI analysis · Informational 15/100

This commit updates the legal/regulatory information screen shown on a Trezor hardware wallet. It adds Taiwan and an extra Japan certification icon, and restructures the code that decides which labels and icons appear. There is no security-relevant change—only on-screen text and images.

Security candidatechore(core): update T3W1 embedded binaries (dev)by tychovrahe · 09daf003 · Sep 23, 2025 · 3 filesMessage 57 · ThinInformational 11Details
Commit message · tychovrahe

chore(core): update T3W1 embedded binaries (dev)

[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
boot or update path
AI analysis · Informational 11/100

This commit updates two pre-built binary files for the T3W1 hardware model (a QA bootloader and a Bluetooth development firmware blob) and refreshes the recorded cryptographic hash for the new bootloader version. The change is labeled as a routine development chore with no changelog entry. There is no source-code diff, no description of a security fix, and no independent evidence that this update addresses a vulnerability.

Lower-priorityfix(core): always redraw screen when waking up from suspendby tychovrahe · fea7706d · Sep 23, 2025 · 1 fileMessage 62 · AdequateLow 26Details
Commit message · tychovrahe

fix(core): always redraw screen when waking up from suspend

[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 26/100

This small change makes a Trezor device always redraw its screen and refresh the idle timer after waking from suspend, regardless of what triggered the wakeup. Previously, the screen was only redrawn when the user pressed a button to wake the device. The fix prevents a stale or blank screen from remaining visible after other wakeup events, which could confuse the user about the device's true state.

Security candidaterefactor(eckhart): subtext marquee when too longby Ioan Bizău · c328be66 · Sep 23, 2025 · 2 filesMessage 57 · ThinInformational 15Details
Commit message · Ioan Bizău

refactor(eckhart): subtext marquee when too long

[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
boot or update path
AI analysis · Informational 15/100

This commit is a routine user-interface cleanup for the Trezor hardware wallet. It removes a manual 'marquee' flag and instead makes any long subtext automatically scroll sideways. There is no indication this change fixes or introduces a security problem.

Lower-priorityfeat(nordic/ble): enable controlling TX power level from main MCUby tychovrahe · 07be1a28 · Sep 23, 2025 · 8 filesMessage 62 · AdequateInformational 17Details
Commit message · tychovrahe

feat(nordic/ble): enable controlling TX power level from main MCU

[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 17/100

This commit adds a feature that lets the main Trezor MCU tell the Bluetooth chip what radio transmit power to use. It is a normal feature addition and does not, by itself, look like a security vulnerability. The only notable risk is that if an attacker could already send malicious commands to the internal Bluetooth-to-main-MCU channel, they might be able to lower the Bluetooth signal strength, which could make the device harder to detect or more likely to disconnect unexpectedly. There is no evidence in the commit that such command injection is possible, and the commit does not claim to fix a security issue.

Lower-priorityfix(core): wake up device on USB HID and VCP communication tooby tychovrahe · 9156dfb1 · Sep 23, 2025 · 2 filesMessage 62 · AdequateLow 35Details
Commit message · tychovrahe

fix(core): wake up device on USB HID and VCP communication too

[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 35/100

This commit fixes a power-management bug in Trezor hardware wallets. Previously, USB HID (button/keyboard-like) and VCP (serial port-like) traffic did not wake the device from suspend/sleep. The patch makes any incoming USB data on these interfaces trigger a wakeup, so the device responds promptly instead of staying asleep.

Security candidatefeat(core/eckhart): thp app nameby Lukas Bielesch · 7f448deb · Sep 23, 2025 · 9 filesMessage 57 · ThinInformational 15Details
Commit message · Lukas Bielesch

feat(core/eckhart): thp app name

[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 pathboot or update path
AI analysis · Informational 15/100

This commit is a routine user-interface feature update for the Trezor hardware wallet. It changes the device menu so that paired Bluetooth-style devices can display both a host name and an application name, and it adds a scrolling (marquee) text effect for long names. There is no security-relevant change, no vulnerability fix, and no indication of a security issue.

Security candidatefeat(core/eckhart): add host info screen to device menuby Lukas Bielesch · f91e1a3d · Sep 23, 2025 · 15 filesMessage 77 · AdequateInformational 15Details
Commit message · Lukas Bielesch

feat(core/eckhart): add host info screen to device menu

- add host info screen for each paired device
[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
cryptography-sensitive pathsigning or wallet pathboot or update path
AI analysis · Informational 15/100

This commit adds a new 'Host info' screen to the device menu on Trezor hardware wallets (Eckhart layout only). It lets users view the name and Bluetooth MAC address of each paired host device. There is no security vulnerability here—this is purely a user-interface feature.

Lower-priorityfeat(core): Add USB communication wakeup sourceby tychovrahe · 0457d5c3 · Sep 23, 2025 · 6 filesMessage 57 · ThinInformational 18Details
Commit message · tychovrahe

feat(core): Add USB communication wakeup source

[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 18/100

This commit adds USB communication as a new way to wake a sleeping Trezor hardware wallet. Previously, the device could wake from button presses, Bluetooth, power events, NFC, or a real-time clock timer. Now, receiving data over the USB cable (WebUSB) also sets a wakeup flag. The change also restores the screen backlight to normal brightness when the device resumes from suspend. There is no indication in the commit that this fixes a security vulnerability; it appears to be a feature or usability improvement.

Lower-priorityfix(core): fix wireless charging in suspend.by kopecdav · f11db95b · Sep 23, 2025 · 1 fileMessage 57 · ThinInformational 15Details
Commit message · kopecdav

fix(core): fix wireless charging in suspend.

[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 fixes a bug in the Trezor hardware wallet's low-power suspend routine for STM32U5 devices. Previously, when the device was placed on a wireless charger and not connected by USB cable, it would not stay suspended with the charging LED effect active; it could drop out of suspend unexpectedly. The fix tracks whether charging is active and keeps the device in the suspend loop while charging, even without a USB connection. There is no indication this is a security vulnerability or exploitable by an attacker.

Lower-priorityfeat(core): wakeup device from suspend on USB message.by kopecdav · df3ad8fd · Sep 23, 2025 · 7 filesMessage 62 · AdequateLow 35Details
Commit message · kopecdav

feat(core): wakeup device from suspend on USB message.

[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 35/100

This commit changes how the Trezor hardware wallet enters and wakes from its low-power suspend state. Previously, the device would fully shut down USB communication before entering suspend, so a connected computer could not wake it by sending a message. The change keeps USB active while the device is merely 'idling' with a cable connected, and only fully suspends USB after the cable is disconnected or a real wake-up event occurs. It also fixes a related LED effect bug so the RGB light is stopped when resuming. The overall intent is a feature improvement (wake on USB message), but it slightly increases the time window during which USB is live while the rest of the device is partially suspended, which could matter if the USB stack has flaws.

Lower-priorityfix(nordic/ble): fix connection parameters update while connectedby tychovrahe · 812b5baa · Sep 23, 2025 · 1 fileMessage 62 · AdequateLow 27Details
Commit message · tychovrahe

fix(nordic/ble): fix connection parameters update while connected

[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 27/100

This commit fixes how the Trezor Bluetooth Low Energy (BLE) connection updates its speed settings. Previously, changing speed mode while already connected did not actually apply the new connection parameters to the live connection. The change centralizes the update logic and ensures that switching between high and low speed modes immediately requests the new parameters from the connected peer. There is no direct evidence in the commit that this is a security vulnerability, but an incorrect or stale BLE connection interval could affect responsiveness, power usage, or potentially create a small window of unexpected behavior.

Lower-priorityfix(core): improve homescreen upload speed over BLEby tychovrahe · bbcab3f5 · Sep 23, 2025 · 9 filesMessage 62 · AdequateInformational 20Details
Commit message · tychovrahe

fix(core): improve homescreen upload speed over BLE

[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 20/100

This commit adds a new Bluetooth Low Energy (BLE) 'high speed' mode that is temporarily enabled only while uploading a custom homescreen image, then turned off afterward. It is a performance optimization, not a security fix. There is no evidence in the commit of a vulnerability, attack, or security-relevant bug.

Lower-prioritychore: remove unused stringby obrusvit · a20034f8 · Sep 23, 2025 · 4 filesMessage 47 · ThinInformational 15Details
Commit message · obrusvit

chore: remove unused string

[no changelog]

47/100 · ThinMessage clarity
✓ Descriptive subject✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This commit simply removes one unused translation string ('ethereum__contract') and its associated references from the Trezor firmware codebase. It is a routine cleanup with no user-facing or security impact.

AI review queuedchore(core): sync some Crowdinby obrusvit · 1b8a8002 · Sep 23, 2025 · 8 filesMessage 72 · AdequateInformational 15Details
Commit message · obrusvit

chore(core): sync some Crowdin

- another batch of sync but not complete, these should be mergeable
without pain

[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
signing or wallet pathsecond-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 wording in several language files (Czech, German, Spanish, French, Italian, Portuguese) and refreshes the corresponding digital signature and UI test snapshot records. There are no code logic changes, no security fixes, and no changes to how the device protects private keys or signs transactions.

Security candidatestyle(python): update types to pyright 1.1.404by matejcik · bfa3d82f · Sep 22, 2025 · 22 filesMessage 45 · ThinInformational 15Details
Commit message · matejcik

style(python): update types to pyright 1.1.404

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

This is a routine code-style and type-annotation cleanup in the Python part of the Trezor firmware repository. It updates type hints to satisfy a newer version of the pyright type checker, replaces some manual success checks with a helper, and makes a few small return-type changes (for example, returning bytes instead of bytearray from some transport reads). There is no indication of a security bug being fixed or introduced.

Security candidatestyle(core): update types to pyright 1.1.404by matejcik · c3e6e7a2 · Sep 22, 2025 · 197 filesMessage 60 · AdequateInformational 15Details
Commit message · matejcik

style(core): update types to pyright 1.1.404

Majority by volume is resolving the byte types promotion problem, which
pyright stopped ignoring

60/100 · AdequateMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Provides an explanatory body
Why it was queued
cryptography-sensitive pathseed or entropy pathsigning or wallet pathboot or update pathauthentication pathparser or protocol path
AI analysis · Informational 15/100

This is a large code-style and type-annotation cleanup. It replaces concrete type hints like `bytes` with broader aliases such as `AnyBytes`, `AnyBuffer`, and `StrOrBytes`, and fixes a few minor type-checker warnings (for example adding an `assert ... is not None` and wrapping a value with `bytes(...)`). There are no runtime logic changes, no security fixes, and no behavior changes visible in the diff.

Lower-prioritychore: update pyright to 1.1.404by matejcik · 7538d00f · Sep 22, 2025 · 2 filesMessage 57 · ThinInformational 15Details
Commit message · matejcik

chore: update pyright to 1.1.404

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 is a routine maintenance update that bumps the Pyright static type checker used in Trezor's continuous integration from version 1.1.361 to 1.1.404. It only changes dependency lock files for a development tool and does not alter any firmware, wallet, or cryptographic code. There is no indication this change fixes or introduces a security issue.

Lower-priorityfix(eckhart): allow cancel on Solana recipientby Ioan Bizău · a31ef11a · Sep 22, 2025 · 2 filesMessage 57 · ThinLow 30Details
Commit message · Ioan Bizău

fix(eckhart): allow cancel on Solana recipient

[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 · Low 30/100

This commit fixes a user-interface bug in the Trezor hardware wallet's new 'Eckhart' layout. When confirming a Solana transaction recipient, the screen previously did not show a 'Cancel' button, so the user had no on-screen way to abort the transaction at that step. The fix adds the missing cancel option. It is a usability fix rather than a remote-exploitable security vulnerability.

Security candidaterefactor(core/eckhart): device menu apiby Lukas Bielesch · a0a73898 · Sep 22, 2025 · 12 filesMessage 72 · AdequateInformational 15Details
Commit message · Lukas Bielesch

refactor(core/eckhart): device menu api

- logical and understandable function parameters and result names
[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
cryptography-sensitive pathboot or update path
AI analysis · Informational 15/100

This commit is a straightforward internal code cleanup for the Trezor hardware wallet's on-device menu system. It renames function parameters, result types, and message identifiers to be clearer and more consistent (for example, 'pin_code' becomes 'pin_enabled' and 'ScreenBrightness' becomes 'SetBrightness'). No security-sensitive behavior appears to change; the same menu options are still presented and handled the same way.

Security candidatefeat(core/eckhart): backup needed menu itemby Lukas Bielesch · 0c9c6e93 · Sep 22, 2025 · 12 filesMessage 72 · AdequateInformational 15Details
Commit message · Lukas Bielesch

feat(core/eckhart): backup needed menu item

- Add "Backup Device" option to Device Menu when backup is needed
[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
cryptography-sensitive pathboot or update path
AI analysis · Informational 15/100

This commit adds a new 'Backup Device' menu item to the Trezor Safe 5 (Eckhart layout) device menu when the device still needs a backup. It is a user-facing feature change, not a security fix or vulnerability. The change wires a new UI button through to the existing backup_device() flow, with no changes to security-critical logic, authentication, or access control.

Security candidatechore(core/eckhart): redesign backup needed menuby Lukas Bielesch · 437a8d61 · Sep 22, 2025 · 12 filesMessage 57 · ThinInformational 15Details
Commit message · Lukas Bielesch

chore(core/eckhart): redesign backup needed menu

[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 pathboot or update path
AI analysis · Informational 15/100

This commit is a user-interface redesign for the Trezor hardware wallet's 'backup needed' menu on the Eckhart model. It removes the ability to start a backup directly from the device menu and instead shows an informational screen telling the user to open Trezor Suite to create a backup. There is no security vulnerability here; it is a routine product change.

AI review queuedfix(core): don't raise `ThpError` on low-level protocol errorsby Roman Zeyde · c39a65ab · Sep 22, 2025 · 5 filesMessage 85 · StrongLow 46Details
Commit message · Roman Zeyde

fix(core): don't raise `ThpError` on low-level protocol errors

`ThpError` ends up being sent over the protocol as `MessageType_Failure`,
but in case of a low-level problem (e.g. unexpected SEQ bit), it is
probably better to ignore the offending message.

We should also not raise `ThpError` when a function is called with invalid
arguments (e.g. bit value not being 0 or 1).

[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
Why it was queued
parser or protocol pathsecond-pass: security-sensitive path
AI analysis · Low 46/100

This commit changes how the Trezor hardware wallet handles low-level communication errors in its new THP (Trezor Host Protocol) code. Previously, certain malformed or unexpected low-level packets would cause the device to raise a ThpError, which gets sent back to the host as a Failure message. The patch makes the device silently ignore many of these low-level problems instead—such as unexpected control bytes, wrong sequence bits, bad checksums, invalid broadcast lengths, and reassembly overruns. Some internal argument checks are also converted from raising errors to assert statements, which only run in debug builds and are removed in production firmware. The stated intent is to make the protocol more robust against noisy or malformed traffic, but it also reduces the device's visibility into potential attacks or protocol fuzzing.