CommitWatch RSS
AI-generated analysisPublished automatically and not human-verified. Validated context appears in community notes below.
← Watch feed
Low 34 Bitcoin

chore: update cryptography and cffi

TZceae470d View source ↗
Public commit record

What the developer wrote

Authored by M1nd3r

72/100 · Adequate
chore: update cryptography and cffi

- cryptography 43.0.3 -> 46.0.5
- cffi 1.17.1 -> 2.0.0

[no changelog]
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides an explanatory body
The short version

What changed, and why it matters

This commit updates two widely used Python helper libraries, 'cryptography' and 'cffi', in the project's dependency lock file. It is a routine maintenance change. The newer versions may fix security bugs in those libraries, but the commit itself does not describe any specific vulnerability, attack, or exploit. There is no direct evidence in the commit that Trezor devices or user funds are at risk.

Recommended action

Verify the project still builds and passes tests with the new dependency versions. Review the upstream cryptography and cffi release notes for any security advisories or breaking API changes that could affect Trezor tooling. Consider whether the relaxed '>43' specifier is intentional or should be capped to avoid future unvetted major upgrades.

Security signals we found

01

Dependency version bump for a cryptographic library (cryptography)

02

Large version jump (43.0.3 -> 46.0.5) may include undisclosed or upstream security fixes

03

No commit-level description of a specific CVE or security issue

04

No application code changes; risk is indirect via transitive dependency behavior

Risk score

Why this scored 34/100

Our methodology →
Potential impact 8/30
Exploitability 5/25
Stealth signal 5/15
Affected reach 7/15
Confidence 6/10
Evidence quality 3/5
Human-validated context

Community notes

Notes can correct, qualify, or add evidence to the AI analysis. Every note shown here has been validated by a human moderator.

No validated notes yet.

The AI analysis stands alone for now. Submit a note if you can add evidence or important context.

More from Trezor firmware

Related watches

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
Open full analysis →Source 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
Open full analysis →Source 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
Open full analysis →Source commit ↗