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Trezor firmware

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

BitcoinHardware walletsNormal
Repository coverage

2703 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.

932security candidates315second-pass queue2675AI analyses
320commits · 30 days
564commits · 60 days
1361commits · 180 days
2626commits · 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
490Strong · 80–100
1339Adequate · 60–79
869Thin · 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 Zeyde587185580272
PrisionMike945994273
Andrew Kozlik782976267
obrusvit21376213164
Jakub Janků22919182
Martin Pastyřík24823173
cepetr19982196059
Ioan Bizău23076230059
M1nd3r21173208071
Lukas Bielesch846784067
Martin Milata18146176063
Analysis record

Published AI watches

Last scanned 17 minutes ago

Low 37 AI analysisMessage 100 · Strong
TZ TrezorTrezor firmware BitcoinHardware wallets

fix(core/fido): don't fail if `_KEEPALIVE_STATUS_PROCESSING` is blocked

This update fixes a bug in the Trezor hardware wallet's FIDO2/WebAuthn support. Previously, when the device was busy and tried to send a 'still processing' keepalive message to the computer, it would crash the whole FIDO operation if the U…

Denial-of-service hardening: prevents a transient USB buffer-full condition from aborting a FIDO authentication/registration workflowException boundary added around low-level USB HID writeChangelog explicitly frames the change as a fix for FIDO interaction failure
e7e15170by Roman Zeyde+12−62 files
No security note in commit
Informational 18 AI analysisMessage 85 · Strong
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(core): drop `USBIF.write_blocking()` and simplify FIDO2 keep-alive sending

This commit is a small internal cleanup in the Trezor hardware wallet's FIDO2 (WebAuthn) code. It removes an unused 'blocking write' USB function and replaces a general synchronous send routine with a simpler one that only sends one-byte '…

Removal of unused blocking USB write path reduces attack surfaceNo change to FIDO2 command parsing, signature generation, or credential storage logicNo bounds-checking or input-validation changes observed
f269eccdby Roman Zeyde+8−513 files
No security note in commit
Informational 15 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

chore: remove libtropic's pin to develop branch

This commit removes a single line from the project's Git submodule configuration. It stops pinning the libtropic submodule to the 'develop' branch, meaning the project will now use the submodule's default branch (likely 'main' or 'master')…

8290eeefby M1nd3r+0−11 file
No security note in commit
Low 37 AI analysisMessage 70 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

chore(core/embed): clear temporary buffer across Optiga/Tropic calls

This is a hardening change for the random number generator inside Trezor hardware wallets. It makes sure that temporary memory holding secret random values from the Optiga and Tropic security chips is wiped immediately after use, rather th…

Sensitive intermediate buffer not cleared promptlyPotential stale-buffer reuse across RNG source boundariesDefense-in-depth memory sanitization for secure-element entropy
01ebda93by Roman Zeyde+2−21 file
No security note in commit
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 72 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

test(core): drop an unused parameter of `make_payment_request()`

This commit only cleans up test code by removing an unused 'session' argument from a helper function used in automated tests. It does not change the actual Trezor firmware or any code that runs on the device, so it has no security impact f…

6dd19fdcby Roman Zeyde+0−188 files
No security note in commit
Informational 15 AI analysisMessage 67 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

docs(core): document rng_fill_buffer_strong_time()

This commit only adds a plain-English comment explaining an existing function that estimates how long a random-number generation call takes. No code behavior changed, and nothing was fixed or added that affects security.

c5687f76by Andrew Kozlik+11−01 file
No security note in commit
Low 44 AI analysisMessage 77 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

chore: guard against insecure PRNG in bare-metal build

This commit adds compile-time guards to prevent an intentionally insecure random-number generator from being accidentally included in firmware that runs directly on Trezor hardware. It does not fix an active bug, but it adds safety rails s…

Compile-time guard around insecure PRNGExplicit block of bare-metal / freestanding targetsExisting production-build guard already present
4f8f4586by Andrew Kozlik+11−01 file
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
Informational 15 AI analysisMessage 85 · Strong
TZ TrezorTrezor firmware BitcoinHardware wallets

fix(build-docker): stop swallowing pub-bin copy errors

This change fixes a build script that was ignoring copy errors. Previously, the script would silently ignore any failure when copying public binary files, which could hide real problems. Now it only skips the copy when the file genuinely d…

Build script silently ignored copy failures before this fixFix removes unconditional `|| true` error suppressionKnown-benign missing files are now explicitly skipped with a file existence check
d829eda8by Andrew Kozlik+4−11 file
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 15 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

docs: fix links outside book root

This commit only fixes broken or awkward documentation links inside the project's user guide. It replaces relative links that point outside the documentation folder with internal placeholder files or direct GitHub URLs. There is no change …

0d8d4b1bby Martin Milata+14−810 files
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
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Lower-prioritybuild(core/tools): migrate trezor_core_tools to uvby matejcik · 26d67572 · Sep 8, 2025 · 3 filesMessage 62 · AdequateInformational 15Details
Commit message · matejcik

build(core/tools): migrate trezor_core_tools to uv

[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 is a routine build tooling change. It switches the Python packaging tool for Trezor's internal developer utilities from Poetry to uv, updates the pyproject.toml configuration format, and adds an empty __init__.py file. There is no indication of any security fix, vulnerability, or behavior change in the actual tools.

Lower-prioritydocs(python): update READMEby matejcik · 40d9a82c · Sep 8, 2025 · 1 fileMessage 47 · ThinInformational 15Details
Commit message · matejcik

docs(python): update README

[no changelog]

47/100 · ThinMessage clarity
✓ Descriptive subject✓ Uses a recognizable type or scope! No meaningful explanatory body
Why it was queued
documentation-only discount
AI analysis · Informational 15/100

This commit only updates the README documentation for the Python trezorlib package. It changes supported Python and firmware version wording, removes an optional installation extra for device authentication, switches the recommended development tool from Poetry to uv, and reorganizes some sections. There are no code or security changes.

Security candidatestyle: update to black 25 style, silence new flake8 warningsby matejcik · 87f5f12d · Sep 8, 2025 · 38 filesMessage 50 · ThinInformational 15Details
Commit message · matejcik

style: update to black 25 style, silence new flake8 warnings

[no changelog]

50/100 · ThinMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component! No meaningful explanatory body
Why it was queued
cryptography-sensitive pathsigning or wallet pathboot or update pathauthentication path
AI analysis · Informational 15/100

This commit is purely a code-style update. It reformats Python source files to match the latest version of the Black formatter, changes uppercase hex escapes in byte strings to lowercase, removes unnecessary 'global' declarations, and adjusts some 'with' statements and trailing commas to satisfy updated flake8 rules. There are no functional changes to the firmware, tests, or tooling.

AI review queuedbuild: migrate to uv, drop poetry everywhereby matejcik · 8a75794d · Sep 8, 2025 · 29 filesMessage 72 · AdequateInformational 15Details
Commit message · matejcik

build: migrate to uv, drop poetry everywhere

except for HWI and ts-tvl that are using it locally

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: unusually broad changesecond-pass: security-sensitive path
AI analysis · Informational 15/100

This commit is a routine build-system housekeeping change for the Trezor firmware repository. It replaces the Python Poetry package manager with the `uv` package manager across CI workflows, build scripts, and documentation. No device firmware code, cryptographic logic, or security-sensitive behavior is modified. The change is purely about how development dependencies are installed and invoked.

Lower-priorityrefactor(core): optimize `Chunks` memory layoutby Roman Zeyde · 54df8f4b · Sep 8, 2025 · 1 fileMessage 80 · StrongInformational 14Details
Commit message · Roman Zeyde

refactor(core): optimize `Chunks` memory layout

After:
```
print-type-size type: `ui::component::text::layout::Chunks`: 6 bytes, alignment: 2 bytes
print-type-size field `.max_rows`: 2 bytes
print-type-size field `.x_offset`: 2 bytes
print-type-size field `.chunk_size`: 1 bytes
print-type-size end padding: 1 bytes
```

Before:
```
print-type-size type: `ui::component::text::layout::Chunks`: 16 bytes, alignment: 4 bytes
print-type-size field `.max_rows`: 8 bytes
print-type-size field `.chunk_size`: 4 bytes
print-type-size field `.x_offset`: 2 bytes
print-type-size end padding: 2 bytes
```

[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 · Informational 14/100

This commit is a straightforward internal code cleanup that reduces the memory footprint of a text-layout helper struct by switching from larger integer types to smaller ones. There is no security-relevant change: it does not alter how data is validated, how memory is allocated, or how user input is handled. It only changes the size of fields used to count characters and rows on screen.

Security candidaterefactor(core): optimize `SwipeConfig` memoryby Roman Zeyde · 70ddf3d3 · Sep 8, 2025 · 19 filesMessage 80 · StrongInformational 15Details
Commit message · Roman Zeyde

refactor(core): optimize `SwipeConfig` memory

After:
```
print-type-size type: `ui::component::swipe_detect::SwipeConfig`: 5 bytes, alignment: 1 bytes
print-type-size field `.page_axis`: 1 bytes
print-type-size field `.up`: 1 bytes
print-type-size field `.down`: 1 bytes
print-type-size field `.left`: 1 bytes
print-type-size field `.right`: 1 bytes
```

Before:
```
print-type-size type: `ui::component::swipe_detect::SwipeConfig`: 36 bytes, alignment: 4 bytes
print-type-size field `.up`: 8 bytes
print-type-size field `.down`: 8 bytes
print-type-size field `.left`: 8 bytes
print-type-size field `.right`: 8 bytes
print-type-size field `.page_axis`: 1 bytes
print-type-size end padding: 3 bytes
```

[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 pathauthentication path
AI analysis · Informational 15/100

This commit is a straightforward internal code cleanup that reduces the memory used by swipe gesture settings. It replaces a flexible but bulky structure storing animation duration with a simple on/off-style enum that only supports the two durations actually used (normal 333 ms and immediate 0 ms). There is no user-visible behavior change and no security relevance.

Lower-priorityfix(core): fix usb vcp buffer size on stm32f4by cepetr · 825a0ea2 · Sep 8, 2025 · 1 fileMessage 57 · ThinLow 33Details
Commit message · cepetr

fix(core): fix usb vcp buffer size on stm32f4

[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 33/100

This commit fixes a USB communication bug in Trezor hardware wallets that use a high-speed USB chip running in full-speed mode. The device was incorrectly advertising a 512-byte packet size when it should have used 64 bytes. This mismatch could cause USB data corruption or connection failures, but the change is a straightforward buffer-size correction with no direct evidence of exploitability for theft of funds or private keys.

Security candidatefix(core): enable debuglink when PYOPT=0by cepetr · ff774317 · Sep 8, 2025 · 2 filesMessage 57 · ThinLow 28Details
Commit message · cepetr

fix(core): enable debuglink when PYOPT=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
Why it was queued
boot or update path
AI analysis · Low 28/100

This commit changes the build scripts for Trezor hardware wallets so that when building in a non-optimized debug mode (PYOPT=0), a USB debug interface feature is automatically requested. This debug interface is normally used only during development and testing to control and inspect the device. The change itself is small and appears intentional, but enabling debug interfaces in production-like builds can be a security concern if misused. There is no evidence in the commit that this fixes a known security vulnerability; it looks like a build configuration fix.

Lower-prioritychore(core): cancel device menu via UI resultby obrusvit · 183afec1 · Sep 7, 2025 · 1 fileMessage 72 · AdequateInformational 15Details
Commit message · obrusvit

chore(core): cancel device menu via UI result

- cancelling via exception seems wrong and it's confusing in the logs

[no changelog]

72/100 · AdequateMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides an explanatory body
AI analysis · Informational 15/100

This is a small internal cleanup change in the Trezor hardware wallet firmware. It changes how the on-device menu is closed when the user cancels: instead of throwing an internal exception, the menu now returns a normal 'cancelled' result code. There is no indication this fixes a security bug or changes user-visible behavior.

Security candidatefix(core/bootloader): fix bootloader labels.by kopecdav · a95d0caa · Sep 5, 2025 · 1 fileMessage 57 · ThinInformational 15Details
Commit message · kopecdav

fix(core/bootloader): fix bootloader labels.

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

This commit adjusts how text labels are positioned and rendered on the bootloader screen of a Trezor hardware wallet model. It changes the vertical position of progress text, switches from a low-level text-drawing call to a reusable UI label component that supports multi-line wrapping, and adds explicit line breaks in two user-facing messages. There is no security-relevant change visible in the diff.

Lower-priorityfix(core): fix device not accepting BLE messages after wakeupby tychovrahe · e6e2ef92 · Sep 5, 2025 · 1 fileMessage 62 · AdequateInformational 23Details
Commit message · tychovrahe

fix(core): fix device not accepting BLE messages after wakeup

[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 23/100

This is a one-line bug fix in the Bluetooth Low Energy (BLE) driver for Trezor hardware wallets. When the device went to sleep and later woke up, it was incorrectly deciding whether to accept incoming BLE messages based on whether it was currently connected. The fix makes it remember and restore the previous 'accept messages' setting instead. This could have caused the device to ignore legitimate Bluetooth messages after waking up, potentially affecting connectivity or user experience, but there is no direct evidence it enables theft of funds or unauthorized access.

Lower-priorityfix(nordic/ble): adjust connection interval in suspendby tychovrahe · 9100448d · Sep 5, 2025 · 1 fileMessage 62 · AdequateInformational 11Details
Commit message · tychovrahe

fix(nordic/ble): adjust connection interval in 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 · Informational 11/100

This commit tweaks a Bluetooth Low Energy (BLE) connection timing setting used when a Trezor device is suspended. It halves the minimum and maximum connection intervals and raises the supervision timeout. The change is presented as a fix, but the commit message gives no details about what problem it solves or whether there is any security relevance. There is no evidence in the diff or references that this is a security vulnerability.

Lower-prioritychore(python): update OPTIONS.rst [no changelog]by M1nd3r · 949ced79 · Sep 4, 2025 · 1 fileMessage 72 · AdequateInformational 15Details
Commit message · M1nd3r

chore(python): update OPTIONS.rst
[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
documentation-only discount
AI analysis · Informational 15/100

This commit only updates a documentation file (OPTIONS.rst) for the Trezor Python command-line tool. It adds a new 'evolu' command section and a new 'sign-message' entry under Cardano commands. There are no code changes, no security fixes, and no behavior changes.

Lower-prioritytest(core): add unittests for `StrBuffer` slicingby Roman Zeyde · 3acebc5a · Sep 4, 2025 · 1 fileMessage 67 · AdequateInformational 15Details
Commit message · Roman Zeyde

test(core): add unittests for `StrBuffer` slicing

[no changelog]

67/100 · AdequateMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Mentions testing or verification! No meaningful explanatory body
AI analysis · Informational 15/100

This commit only adds new unit tests for an existing string buffer slicing feature. It does not change any production code, fix a bug, or introduce new functionality. There is no security relevance.

Lower-priorityfeat(core): add `StrBuffer::prefix()` methodby Roman Zeyde · db050f3c · Sep 4, 2025 · 1 fileMessage 57 · ThinInformational 15Details
Commit message · Roman Zeyde

feat(core): add `StrBuffer::prefix()` method

[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 adds a new helper method called prefix() to a Rust string buffer used inside the Trezor firmware. It lets code safely take the first N bytes of a string, but only if the cut point lands on a valid UTF-8 character boundary. There is no bug fix, no security patch, and no indication this change addresses a vulnerability.

Lower-priorityfeat(core): support basic string interpolation in Rustby Roman Zeyde · 17e82213 · Sep 4, 2025 · 2 filesMessage 62 · AdequateInformational 15Details
Commit message · Roman Zeyde

feat(core): support basic string interpolation in Rust

[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 adds a small Rust utility that parses simple placeholder strings like '{0}' or '{1}' into text and argument tokens. It is a new feature with no obvious security relevance; it does not change existing behavior or fix any reported issue.

Lower-priorityrefactor(core): use `NoWireContext` in `_get_cache_for_key()`by Roman Zeyde · 99b12a3c · Sep 4, 2025 · 1 fileMessage 62 · AdequateInformational 12Details
Commit message · Roman Zeyde

refactor(core): use `NoWireContext` in `_get_cache_for_key()`

[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 12/100

This is a tiny internal code cleanup in Trezor firmware. It changes the way the code reports an error when there is no active communication context, switching from a generic 'Exception' to a more specific 'NoWireContext' error type. The behavior is essentially the same; it just uses a clearer internal error label. There is no indication this fixes or introduces a security problem.

Lower-priorityfix(core): don't fail `try_get_ctx_ids()` when invoked via UIby Roman Zeyde · bc313c3d · Sep 4, 2025 · 3 filesMessage 95 · StrongLow 30Details
Commit message · Roman Zeyde

fix(core): don't fail `try_get_ctx_ids()` when invoked via UI

It prevented device wipe from happening on T3W1 when recovery was aborted.
Also, adapt the test to create a new THP client after wipe.

[no changelog]

95/100 · StrongMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides detailed explanatory context✓ Mentions testing or verification
AI analysis · Low 30/100

This commit fixes a bug in the Trezor hardware wallet firmware where a function called try_get_ctx_ids() would crash when triggered through the device's user interface rather than over the wire protocol. The crash blocked device wipe from completing on the T3W1 model if a recovery process was aborted. The fix catches the missing-wire-context case and returns no IDs instead of raising an exception, allowing the wipe to proceed. There is no direct evidence in the commit that this is exploitable by an attacker; it appears to be a reliability/functional bug fix.

Lower-priorityfix(core): erase BLE bonds when wiping the deviceby Roman Zeyde · 8a77e73c · Sep 4, 2025 · 1 fileMessage 57 · ThinModerate 58Details
Commit message · Roman Zeyde

fix(core): erase BLE bonds when wiping the device

[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 · Moderate 58/100

This commit fixes a security gap in the Trezor hardware wallet's device-wipe feature. Previously, when a user chose to wipe their device, the secure secrets were erased but Bluetooth Low Energy (BLE) pairing records ('bonds') stored on the Bluetooth chip were left behind. Those leftover bonds could let a previously paired phone or computer reconnect to the wiped device, which is a privacy and minor security concern. The change now erases those BLE bonds during the wipe process.

Security candidatechore(core): bump versions after internal releaseby tychovrahe · 54b59089 · Sep 4, 2025 · 4 filesMessage 57 · ThinInformational 15Details
Commit message · tychovrahe

chore(core): bump versions after internal release

[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 only increments version numbers in four header files after an internal release. There are no code, logic, or security changes visible in the diff.

Lower-priorityfeat(nordic/ble): add device information serviceby tychovrahe · 23af18e9 · Sep 4, 2025 · 2 filesMessage 57 · ThinInformational 24Details
Commit message · tychovrahe

feat(nordic/ble): add device information service

[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 24/100

This commit adds a standard Bluetooth 'Device Information' service to Trezor's Nordic BLE firmware. It advertises the manufacturer name ('Trezor Company s.r.o'), device model ('Trezor Safe 7'), and firmware/software version strings over Bluetooth. There is no direct vulnerability in the diff, but it increases the amount of identifiable information a nearby attacker could read from Bluetooth scan/advertising data, which can aid targeted attacks or fingerprinting.

Security candidatefeat(core): SLIP-24 payment requests for Stellarby Ioan Bizău · 3202db88 · Sep 4, 2025 · 11 filesMessage 57 · ThinLow 35Details
Commit message · Ioan Bizău

feat(core): SLIP-24 payment requests for Stellar

[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 · Low 35/100

This commit adds support for SLIP-24 payment requests to Stellar transactions on Trezor devices. It lets a merchant or service provider attach a signed payment request to a Stellar transaction, which the device verifies and shows on screen before signing. The change is a feature addition, not a fix for a known vulnerability, and it includes safeguards such as rejecting payment requests that contain multiple operations.

Lower-priorityfix(core): correct BLE MAC address displayby Roman Zeyde · 964ae0fa · Sep 4, 2025 · 1 fileMessage 57 · ThinInformational 19Details
Commit message · Roman Zeyde

fix(core): correct BLE MAC address display

[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 19/100

This commit fixes a display bug in the Trezor hardware wallet where the Bluetooth (BLE) MAC address was shown backwards on the device menu. The internal code stored the address bytes in reverse order, but the screen formatter was not flipping them back before showing them to the user. This is a user-interface correctness fix, not a cryptographic or access-control vulnerability.

Lower-prioritychore(core): remove "Continue in the app" screen after label is setby Roman Zeyde · c23df406 · Sep 4, 2025 · 2 filesMessage 77 · AdequateInformational 15Details
Commit message · Roman Zeyde

chore(core): remove "Continue in the app" screen after label is set

It was added to T3W1, but not to other Core models.

[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
AI analysis · Informational 15/100

This commit removes an extra 'Continue in the app' confirmation screen that appeared on the T3W1 Trezor model after the user changed the device label. It is a user-interface consistency cleanup, not a security fix. The change only affects screen flow and updates the corresponding visual test snapshots.

Security candidatefeat(core): set BLE connection parameters differently in bootloader and firmwareby tychovrahe · 6927ce0c · Sep 3, 2025 · 9 filesMessage 62 · AdequateInformational 20Details
Commit message · tychovrahe

feat(core): set BLE connection parameters differently in bootloader and firmware

[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
update trustboot or update path
AI analysis · Informational 20/100

This commit changes how the Bluetooth Low Energy (BLE) connection behaves on Trezor hardware. It adds a way to request a faster BLE connection (used in the bootloader to speed up firmware uploads) and a slower, more power-efficient mode for normal wallet use. The change is a feature, not a fix for a known vulnerability. There is no direct evidence in the commit that it addresses an active security flaw, but changing connection timing parameters can have side effects on wireless reliability and power use.