# CVE-2026-22705

## Summary

- **CVE ID:** CVE-2026-22705
- **Severity:** MEDIUM
- **CVSS Score:** 6.4 (CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N)
- **CWE:** CWE-1240
- **Published:** Jan 10, 2026
- **Last Modified:** Mar 12, 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.

## Affected Products

- RustCrypto — signatures (< 0.1.0-rc.2)

## References

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

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.16%
- **EPSS Percentile:** 5.9

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._