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GHSA-qv7w-v773-3xqm

sm-crypto Affected by Signature Malleability in SM2-DSA

Source: GitHub Advisory Database (reviewed) High CVE-2026-23967

Packages

EcosystemPackageAffectedFixed in
npm sm-crypto < 0.3.14 0.3.14

Details

As written in the advisory (Markdown source, shown as plain text).

### 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

References

External links from the advisory. They lead to third-party sites.