{"id":"CVE-2026-9094","aliases":["GHSA-c9w5-qp6m-m395"],"title":"Casdoor: GetTokenExchangeToken bypass through lack of cross-organization JWT signature check","summary":"Casdoor: GetTokenExchangeToken bypass through lack of cross-organization JWT signature check","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","vendor":"casdoor","product":"github.com/casdoor/casdoor","ecosystem":"go","affected":["github.com/casdoor/casdoor < 2.387.0"],"patched":["github.com/casdoor/casdoor 2.387.0"],"published":"2026-05-28","updated":"2026-07-09","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-c9w5-qp6m-m395","references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-9094"},{"url":"https://github.com/casdoor/casdoor/commit/d92b8568686d"},{"url":"https://github.com/casdoor/casdoor"},{"url":"https://kb.cert.org/vuls/id/780781"}],"tags":["osv","go"],"epss":0.0042,"epssPercentile":0.35827,"ingestedAt":"2026-07-10T18:56:50.769Z","slug":"CVE-2026-9094","body":"## Overview\n\nCasdoor 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.\n\n## Affected packages\n\n- `github.com/casdoor/casdoor < 2.387.0`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `github.com/casdoor/casdoor 2.387.0`","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}