CVE-2026-9091

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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": "Casdoor versions 2.362.0 and earlier contain a logic flaw in the social\u2011login binding flow that allows users to bypass configured MFA requirements. The binding\u2011rule code path in controllers/auth.go calls HandleLoggedIn directly without invoking checkMfaEnable. Any user authenticating via this path is logged in without MFA enforcement."}], "id": "CVE-2026-9091", "lastModified": "2026-06-17T11:04:48.930", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-9091", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-05-29T19:01:45.674578Z", "version": "2.0.3"}}]}, "published": "2026-05-28T17:16:33.953", "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": "semver", "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": "2026-05-28T18:45:24.347192+00:00", "title": "Logic Flaw in Casdoor Social\u2011Login Binding Flow Bypasses MFA Enforcement", "updated": "2026-05-29T22:30:09.224498+00:00", "vendors": ["casdoor", "casdoor$PRODUCT$casdoor"], "weaknesses": ["CWE-749", "CWE-862", "CWE-269"]}