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  5. CVE-2026-22705

CVE-2026-22705: RustCrypto: Signatures has timing side-channel in ML-DSA decomposition

January 13, 2026 (updated January 29, 2026)

A timing side-channel was discovered in the Decompose algorithm which is used during ML-DSA signing to generate hints for the signature.

References

  • github.com/RustCrypto/signatures
  • github.com/RustCrypto/signatures/commit/035d9eef98486ecd00a8bf418c7817eb14dd6558
  • github.com/RustCrypto/signatures/pull/1144
  • github.com/RustCrypto/signatures/security/advisories/GHSA-hcp2-x6j4-29j7
  • github.com/advisories/GHSA-hcp2-x6j4-29j7
  • nvd.nist.gov/vuln/detail/CVE-2026-22705
  • rustsec.org/advisories/RUSTSEC-2025-0144.html

Code Behaviors & Features

Detect and mitigate CVE-2026-22705 with GitLab Dependency Scanning

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Affected versions

All versions before 0.1.0-rc.2

Fixed versions

  • 0.1.0-rc.2

Solution

Upgrade to version 0.1.0-rc.2 or above.

Impact 6.4 MEDIUM

CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

Learn more about CVSS

Weakness

  • CWE-1240: Use of a Cryptographic Primitive with a Risky Implementation

Source file

cargo/ml-dsa/CVE-2026-22705.yml

Spotted a mistake? Edit the file on GitLab.

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