CVE-2026-22705CWE-1240

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

Medium · published January 10, 2026

CVSS v3.1
6.4
EPSS
0%
Percentile
5.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.4 · MEDIUM
Vector
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00163 · 5.2th percentile
Weakness
CWE-1240 · Use of a Cryptographic Primitive with a Risky Implementation
Published
2026-01-10T06:14Z
EPSS history
Timeline
  • 10 JAN 06:14Z
    RustCrypto: Signatures has timing side-channel in ML-DSA decomposition
    cvelistv5