CVE-2026-22705
RustCrypto: Signatures has timing side-channel in ML-DSA decomposition
- State
- Published
- Severity
- 6.4 Medium
- Published
- Jan 10, 2026
- Updated
- Jan 12, 2026
- Reserved
- Jan 8, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.4 Medium | CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N | GitHub_M |
Weaknesses
- CWE-1240 Use of a Cryptographic Primitive with a Risky Implementation
Affected Products
| Product | Versions |
|---|---|
signaturesRustCrypto |
|
References
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