sm-crypto provides JavaScript implementations of the Chinese cryptographic algorithms SM2, SM3, and SM4. A signature malleability vulnerability exists in the SM2 signature verification logic of the sm-crypto library prior to version 0.3.14. An attacker can derive a new valid signature for a previously signed message from an existing signature. Version 0.3.14 patches the issue.
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History
Fri, 23 Jan 2026 16:45:00 +0000
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Thu, 22 Jan 2026 02:45:00 +0000
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| Description | sm-crypto provides JavaScript implementations of the Chinese cryptographic algorithms SM2, SM3, and SM4. A signature malleability vulnerability exists in the SM2 signature verification logic of the sm-crypto library prior to version 0.3.14. An attacker can derive a new valid signature for a previously signed message from an existing signature. Version 0.3.14 patches the issue. | |
| Title | sm-crypto Affected by Signature Malleability in SM2-DSA | |
| Weaknesses | CWE-347 | |
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cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-01-22T16:03:58.987Z
Reserved: 2026-01-19T14:49:06.314Z
Link: CVE-2026-23967
Updated: 2026-01-22T16:03:46.053Z
Status : Received
Published: 2026-01-22T03:15:47.167
Modified: 2026-01-22T03:15:47.167
Link: CVE-2026-23967
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