CVE-2024-37568

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}, {"affectedData": [{"cpes": ["cpe:2.3:a:lepture:authlib:*:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "product": "authlib", "vendor": "lepture", "versions": [{"lessThan": "1.3.1", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:authlib:authlib:*:*:*:*:*:*:*:*", "matchCriteriaId": "18E429CB-390E-4F80-B36A-83E930FFDC41", "versionEndExcluding": "1.3.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "lepture Authlib before 1.3.1 has algorithm confusion with asymmetric public keys. Unless an algorithm is specified in a jwt.decode call, HMAC verification is allowed with any asymmetric public key. (This is similar to CVE-2022-29217 and CVE-2024-33663.)"}, {"lang": "es", "value": "La versi\u00f3n Authlib anterior a 1.3.1 tiene confusi\u00f3n de algoritmo con claves p\u00fablicas asim\u00e9tricas. A menos que se especifique un algoritmo en una llamada jwt.decode, se permite la verificaci\u00f3n HMAC con cualquier clave p\u00fablica asim\u00e9trica. (Esto es similar a CVE-2022-29217 y CVE-2024-33663)."}], "id": "CVE-2024-37568", "lastModified": "2026-06-17T07:38:37.637", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-37568", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-08-15T15:15:48.042808Z", "version": "2.0.3"}}]}, "published": "2024-06-09T19:15:52.323", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Issue Tracking"], "url": "https://github.com/lepture/authlib/issues/654"}, {"source": "cve@mitre.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FHJI32SN4FNAUVNALVGOKWHNSQ6XS3M5/"}, {"source": "cve@mitre.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IZI7HYGN7VZAYFV6UV3SRLYF7QGERXIU/"}, {"source": "cve@mitre.org", "url": "https://www.vicarius.io/vsociety/posts/algorithm-confusion-in-lepture-authlib-cve-2024-37568"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Issue Tracking"], "url": "https://github.com/lepture/authlib/issues/654"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00032.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FHJI32SN4FNAUVNALVGOKWHNSQ6XS3M5/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IZI7HYGN7VZAYFV6UV3SRLYF7QGERXIU/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://www.vicarius.io/vsociety/posts/algorithm-confusion-in-lepture-authlib-cve-2024-37568"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-347"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-284"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

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