CVE-2026-22705 MEDIUM

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

Vendor Rustcrypto
Product signatures
Weakness CWE-1240
Published January 10, 2026
Last update January 12, 2026
View on NVD All CVEs

CVSS base score

6.4/10
Attack vector Adjacent
Attack complexity High
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

January 10, 2026 CVE published
January 12, 2026 Record updated