{"id":"GHSA-c9w5-qp6m-m395","summary":"Casdoor: GetTokenExchangeToken bypass through lack of cross-organization JWT signature check","details":"Casdoor versions 2.362.0 and earlier contain a vulnerability enabling cross-organization token exchange. The GetTokenExchangeToken function in object/token_oauth.go validates JWT signatures but does not verify that the token's user belongs to the same organization as the target application. This can result in privilege escalation across organizational boundaries.","aliases":["CVE-2026-9094","GO-2026-5953"],"modified":"2026-07-21T19:19:17.248123151Z","published":"2026-05-28T18:30:32Z","database_specific":{"severity":"CRITICAL","github_reviewed":true,"github_reviewed_at":"2026-07-09T23:32:36Z","nvd_published_at":"2026-05-28T17:16:34Z","cwe_ids":["CWE-269","CWE-863"]},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-9094"},{"type":"WEB","url":"https://github.com/casdoor/casdoor/commit/d92b8568686d"},{"type":"PACKAGE","url":"https://github.com/casdoor/casdoor"},{"type":"WEB","url":"https://kb.cert.org/vuls/id/780781"}],"affected":[{"package":{"name":"github.com/casdoor/casdoor","ecosystem":"Go","purl":"pkg:golang/github.com/casdoor/casdoor"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.387.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-c9w5-qp6m-m395/GHSA-c9w5-qp6m-m395.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}