CVE-2026-9093

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{"affected": [{"affectedData": [{"product": "Casdoor", "vendor": "Casdoor", "versions": [{"lessThanOrEqual": "2.362.0", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "cret@cert.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In Casdoor versions 2.362.0 and earlier, the SAML service provider implementation does not validate the AudienceRestriction element in SAML assertions. The buildSp function in object/saml_sp.go never sets AudienceURI on the gosaml2 SAMLServiceProvider struct and never inspects WarningInfo.NotInAudience. This allows assertions issued for other service providers to be accepted by Casdoor."}], "id": "CVE-2026-9093", "lastModified": "2026-06-17T11:04:49.187", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-9093", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-06-02T15:47:55.475804Z", "version": "2.0.3"}}]}, "published": "2026-05-28T17:16:34.210", "references": [{"source": "cret@cert.org", "url": "https://kb.cert.org/vuls/id/780781"}], "sourceIdentifier": "cret@cert.org", "vulnStatus": "Deferred"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,2.362.0]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Casdoor", "source": "cna", "vendor": "Casdoor"}, "product": "casdoor", "vendor": "casdoor"}], "created": "2026-05-28T19:15:06.466227+00:00", "title": "Casdoor SAML SP Fails to Validate AudienceRestriction, Allowing Assertion Acceptance for Unauthorized Service Providers", "updated": "2026-06-03T04:30:05.953093+00:00", "vendors": ["casdoor", "casdoor$PRODUCT$casdoor"]}