{"api_version":"1","generated_at":"2026-05-30T06:22:10+00:00","cve":"CVE-2026-9098","urls":{"html":"https://cve.report/CVE-2026-9098","api":"https://cve.report/api/cve/CVE-2026-9098.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-9098","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-9098"},"summary":{"title":"CVE-2026-9098","description":"In Casdoor versions 2.362.0 and earlier, the SAML callback handler in controllers/auth.go accepts any well-formed SAMLResponse sent to /api/acs without verifying that it corresponds to an AuthnRequest previously issued by Casdoor. Additionally, if an administrator disables or deletes an IdP (Identity Provider) after a SAML flow has started, the handler still processes the response using the provider snapshot loaded at the start of the request. As a result, an attacker controlling a registered upstream IdP can send unsolicited SAML responses, or replay a legitimately captured response in a different session or after the original flow has ended. In both cases, Casdoor accepts the response and issues a session, enabling persistent unauthorized access.","state":"PUBLISHED","assigner":"certcc","published_at":"2026-05-28 17:16:34","updated_at":"2026-05-28 18:00:22"},"problem_types":["CWE-346 Origin Validation Error"],"metrics":[],"references":[{"url":"https://kb.cert.org/vuls/id/780781","name":"https://kb.cert.org/vuls/id/780781","refsource":"cret@cert.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-9098","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-9098","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Casdoor","product":"Casdoor","version":"affected 2.362.0 custom","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"9098","cve":"CVE-2026-9098","epss":"0.000100000","percentile":"0.012060000","score_date":"2026-05-29","updated_at":"2026-05-30 00:13:23"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"product":"Casdoor","vendor":"Casdoor","versions":[{"lessThanOrEqual":"2.362.0","status":"affected","version":"0","versionType":"custom"}]}],"descriptions":[{"lang":"en","value":"In Casdoor versions 2.362.0 and earlier, the SAML callback handler in controllers/auth.go accepts any well-formed SAMLResponse sent to /api/acs without verifying that it corresponds to an AuthnRequest previously issued by Casdoor. Additionally, if an administrator disables or deletes an IdP (Identity Provider) after a SAML flow has started, the handler still processes the response using the provider snapshot loaded at the start of the request. As a result, an attacker controlling a registered upstream IdP can send unsolicited SAML responses, or replay a legitimately captured response in a different session or after the original flow has ended. In both cases, Casdoor accepts the response and issues a session, enabling persistent unauthorized access."}],"problemTypes":[{"descriptions":[{"description":"CWE-346 Origin Validation Error","lang":"en"}]}],"providerMetadata":{"dateUpdated":"2026-05-28T16:31:42.767Z","orgId":"37e5125f-f79b-445b-8fad-9564f167944b","shortName":"certcc"},"references":[{"url":"https://kb.cert.org/vuls/id/780781"}],"source":{"discovery":"UNKNOWN"},"title":"CVE-2026-9098","x_generator":{"engine":"VINCE 3.0.41","env":"prod","origin":"https://cveawg.mitre.org/api/cve/CVE-2026-9098"}}},"cveMetadata":{"assignerOrgId":"37e5125f-f79b-445b-8fad-9564f167944b","assignerShortName":"certcc","cveId":"CVE-2026-9098","datePublished":"2026-05-28T16:31:42.767Z","dateReserved":"2026-05-20T15:05:20.584Z","dateUpdated":"2026-05-28T16:31:42.767Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-28 17:16:34","lastModifiedDate":"2026-05-28 18:00:22","problem_types":["CWE-346 Origin Validation Error"],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"9098","Ordinal":"1","Title":"CVE-2026-9098","CVE":"CVE-2026-9098","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"9098","Ordinal":"1","NoteData":"In Casdoor versions 2.362.0 and earlier, the SAML callback handler in controllers/auth.go accepts any well-formed SAMLResponse sent to /api/acs without verifying that it corresponds to an AuthnRequest previously issued by Casdoor. Additionally, if an administrator disables or deletes an IdP (Identity Provider) after a SAML flow has started, the handler still processes the response using the provider snapshot loaded at the start of the request. As a result, an attacker controlling a registered upstream IdP can send unsolicited SAML responses, or replay a legitimately captured response in a different session or after the original flow has ended. In both cases, Casdoor accepts the response and issues a session, enabling persistent unauthorized access.","Type":"Description","Title":"CVE-2026-9098"}]}}}