What is GHSA-qv7w-v773-3xqm?

GHSA-qv7w-v773-3xqm is a security advisory published by GitHub Security Advisories with High severity. sm-crypto Affected by Signature Malleability in SM2-DSA

Which CVE IDs does GHSA-qv7w-v773-3xqm cover?

GHSA-qv7w-v773-3xqm covers the following CVE IDs: CVE-2026-23967. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-qv7w-v773-3xqm?

GHSA-qv7w-v773-3xqm has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

Which products are affected by GHSA-qv7w-v773-3xqm?

GHSA-qv7w-v773-3xqm affects 1 product, including: npm/sm-crypto:\u003c 0.3.14.

GHSA-qv7w-v773-3xqmHighCVSS 7.5

sm-crypto Affected by Signature Malleability in SM2-DSA

Vendor

GitHub Security Advisories

Published

January 21, 2026

Last Modified

January 22, 2026

🔗 CVE IDs covered (1)

CVE-2026-23967 →

📋 Description

Summary

A signature malleability vulnerability exists in the SM2 signature verification logic of the sm-crypto library. An attacker can derive a new valid signature for a previously signed message from an existing signature.

Credit

This vulnerability was discovered by:

XlabAI Team of Tencent Xuanwu Lab
Atuin Automated Vulnerability Discovery Engine

🎯 Affected products1

npm/sm-crypto:< 0.3.14

🔗 References (3)

https://github.com/JuneAndGreen/sm-crypto/security/advisories/GHSA-qv7w-v773-3xqm
https://nvd.nist.gov/vuln/detail/CVE-2026-23967
https://github.com/advisories/GHSA-qv7w-v773-3xqm