{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-104056", "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b", "state": "PUBLISHED", "assignerShortName": "certcc", "dateReserved": "2026-10-01T18:01:19.689Z", "datePublished": "2026-10-01T18:03:27.484Z", "dateUpdated": "2026-10-05T18:21:14.480Z" }, "containers": { "cna": { "title": "CVE-2026-104056", "descriptions": [ { "lang": "en", "value": "Authlib version 1.7.2 and below contains a vulnerability where discovery JSON metadata is cached without validation or issuer-origin binding. This allows a poisoned discovery response to replace all endpoint values with attacker-controlled values rather than endpoint URLs that share the origin of the configured server metadata URL." } ], "source": { "discovery": "UNKNOWN" }, "affected": [ { "vendor": "Authlib", "product": "Authlib", "versions": [ { "status": "affected", "version": "1.7.2" } ] } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "CWE-345 Insufficient Verification of Data Authenticity" } ] }, { "descriptions": [ { "lang": "en", "description": "CWE-346 Origin Validation Error" } ] }, { "descriptions": [ { "lang": "en", "description": "CWE-829 Inclusion of Functionality from Untrusted Control Sphere" } ] } ], "references": [ { "url": "https://uziii2208.github.io/post/cve-2026-104056/" } ], "x_generator": { "engine": "VINCE 3.0.49", "env": "prod", "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-104056" }, "providerMetadata": { "orgId": "37e5125f-f79b-445b-8fad-9564f167944b", "shortName": "certcc", "dateUpdated": "2026-10-01T18:03:27.484Z" } }, "adp": [ { "problemTypes": [ { "descriptions": [ { "type": "CWE", "cweId": "CWE-345", "lang": "en", "description": "CWE-345 Insufficient Verification of Data Authenticity" }, { "type": "CWE", "cweId": "CWE-346", "lang": "en", "description": "CWE-346 Origin Validation Error" }, { "type": "CWE", "cweId": "CWE-829", "lang": "en", "description": "CWE-829 Inclusion of Functionality from Untrusted Control Sphere" } ] } ], "references": [ { "url": "https://uziii2208.github.io/post/cve-2026-104056/", "tags": [ "exploit" ] } ], "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "timestamp": "2026-10-05T18:21:10.671606Z", "id": "CVE-2026-104056", "options": [ { "Exploitation": "poc" }, { "Automatable": "yes" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-05T18:21:14.480Z" } } ] } }