CVE-2026-23967

{"id": "CVE-2026-23967", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2026-01-22T03:15:47.167", "references": [{"url": "https://github.com/JuneAndGreen/sm-crypto/security/advisories/GHSA-qv7w-v773-3xqm", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-347"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "sm-crypto proporciona implementaciones de JavaScript de los algoritmos criptogr\u00e1ficos chinos SM2, SM3 y SM4. Existe una vulnerabilidad de maleabilidad de firma en la l\u00f3gica de verificaci\u00f3n de firma SM2 de la librer\u00eda sm-crypto anterior a la versi\u00f3n 0.3.14. Un atacante puede derivar una nueva firma v\u00e1lida para un mensaje previamente firmado a partir de una firma existente. La versi\u00f3n 0.3.14 corrige el problema."}], "lastModified": "2026-02-25T15:31:26.013", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:juneandgreen:sm-crypto:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "902F9DFD-B5BC-4BF4-9AF2-CB42F616B3D4", "versionEndExcluding": "0.3.14"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}