{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-96760", "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b", "state": "PUBLISHED", "assignerShortName": "certcc", "dateReserved": "2026-09-23T15:59:27.145Z", "datePublished": "2026-09-28T19:37:58.973Z", "dateUpdated": "2026-09-28T20:07:57.835Z"}, "containers": {"cna": {"title": "Authlib library contains a signature\u2011verification bypass vulnerability", "descriptions": [{"lang": "en", "value": "Authlib (v1.7.2 and below) contains a signature verification bypass vulnerability. The JsonWebSignature.deserialize_json() method accepts a JSON Serialization JWS object and returns the payload as successfully verified without checking for a signature and without requiring a cryptographic key."}], "source": {"discovery": "UNKNOWN"}, "affected": [{"vendor": "Authlib", "product": "Authlib", "versions": [{"status": "affected", "version": "1.7.2"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-347 Improper Verification of Cryptographic Signature"}]}, {"descriptions": [{"lang": "en", "description": "CWE-670 Always-Incorrect Control Flow Implementation"}]}, {"descriptions": [{"lang": "en", "description": "CWE-358 Improperly Implemented Security Check for Standard"}]}, {"descriptions": [{"lang": "en", "description": "CWE-20 Improper Input Validation"}]}], "references": [{"url": "https://github.com/authlib/authlib"}, {"url": "https://kb.cert.org/vuls/id/762428"}], "x_generator": {"engine": "VINCE 3.0.49", "env": "prod", "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-96760"}, "providerMetadata": {"orgId": "37e5125f-f79b-445b-8fad-9564f167944b", "shortName": "certcc", "dateUpdated": "2026-09-28T19:37:58.973Z"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "https://www.kb.cert.org/vuls/id/762428"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-09-28T20:07:57.835Z"}}]}}

{}

{"affected": [{"affectedData": [{"product": "Authlib", "vendor": "Authlib", "versions": [{"status": "affected", "version": "1.7.2"}]}], "source": "cret@cert.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Authlib (v1.7.2 and below) contains a signature verification bypass vulnerability. The JsonWebSignature.deserialize_json() method accepts a JSON Serialization JWS object and returns the payload as successfully verified without checking for a signature and without requiring a cryptographic key."}], "id": "CVE-2026-96760", "lastModified": "2026-09-28T21:17:19.650", "metrics": {}, "published": "2026-09-28T20:17:11.703", "references": [{"source": "cret@cert.org", "url": "https://github.com/authlib/authlib"}, {"source": "cret@cert.org", "url": "https://kb.cert.org/vuls/id/762428"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://www.kb.cert.org/vuls/id/762428"}], "sourceIdentifier": "cret@cert.org", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "1.7.2"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Authlib", "source": "cna", "vendor": "Authlib"}, "product": "authlib", "vendor": "authlib"}], "created": "2026-09-28T21:00:04.719663+00:00", "updated": "2026-09-28T21:30:07.217763+00:00", "vendors": ["authlib", "authlib$PRODUCT$authlib"], "weaknesses": ["CWE-287"]}