What is CVE-2026-22705?

CVE-2026-22705 is a medium-severity vulnerability in Rustcrypto Signatures, classified under CWE-1240. CVSS score: 6.4/10. Published 2026-01-10.

How severe is CVE-2026-22705?

Medium severity. CVSS v3 base score is 6.4 out of 10.

Vulnerability in Rustcrypto Signatures

CVE-2026-22705

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 du…

EPSS: 0.000 (3.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

Rustcrypto Signatures — versions < 0.1.0-rc.2

Weakness classification (CWE)

CWE-1240

References

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

Frequently asked questions

What is CVE-2026-22705?: CVE-2026-22705 is a medium-severity vulnerability in Rustcrypto Signatures, classified under CWE-1240. CVSS score: 6.4/10. Published 2026-01-10.
How severe is CVE-2026-22705?: Medium severity. CVSS v3 base score is 6.4 out of 10.