{"cve":"CVE-2026-9090","nvd":{"published":"2026-05-28T17:16:33.820","modified":"2026-06-17T11:04:48.803","status":"Deferred","description":"Casdoor versions 2.362.0 and earlier contain a vulnerability that allows an attacker to bypass authentication by supplying an arbitrary signing certificate. The buildSpCertificateStore function extracts the X.509 certificate directly from the incoming SAMLResponse instead of using the trusted pre-configured Identity Provider certificate, allowing an attacker to forge assertions signed with an attacker-controlled key.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","score":9.1},"cwes":[],"references":["https://kb.cert.org/vuls/id/780781"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:36:28.938604137+00:00"},"epss":{"cve":"CVE-2026-9090","score":0.00216,"percentile":0.12076,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-fwgq-j9r9-qjgr","url":"https://osv.dev/vulnerability/GHSA-fwgq-j9r9-qjgr","summary":"Casdoor has an authentication bypass","modified":"2026-07-07T16:11:20.455078618Z","packages":[{"ecosystem":"Go","name":"github.com/casdoor/casdoor","purl":"pkg:golang/github.com/casdoor/casdoor","ranges":["<=1.1000.1-0.20260321120606-239e8bd69487"],"fixed":[]}]},{"id":"GO-2026-5895","url":"https://osv.dev/vulnerability/GO-2026-5895","summary":"Casdoor has an authentication bypass in github.com/casdoor/casdoor","modified":"2026-07-07T16:01:31.279526799Z","packages":[{"ecosystem":"Go","name":"github.com/casdoor/casdoor","purl":"pkg:golang/github.com/casdoor/casdoor","ranges":["all versions"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}