VulnerabilityDeferred

CVE-2026-22705

RustCrypto: Signatures offers support for digital signatures, which provide authentication of data using public-key cryptography.

MEDIUM 6.4EPSS 0.16%

Does this matter?

Lower severity and a low EPSS score (0.16%). Track it; it rarely justifies an emergency change on its own.

Description

RustCrypto: Signatures offers support for digital signatures, which provide authentication of data using public-key cryptography. Prior to version 0.1.0-rc.2, a timing side-channel was discovered in the Decompose algorithm which is used during ML-DSA signing to generate hints for the signature. This issue has been patched in version 0.1.0-rc.2.

CVSS 3.1: 6.4 MEDIUMCVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
EPSS: 0.16% probability · 6th percentile
CISA KEV: Not listed
Weakness: CWE-1240
Source: security-advisories@github.com

References

https://github.com/RustCrypto/signatures/commit/035d9eef98486ecd00a8bf418c7817eb14dd6558
https://github.com/RustCrypto/signatures/pull/1144
https://github.com/RustCrypto/signatures/security/advisories/GHSA-hcp2-x6j4-29j7

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.