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Open-source package vulnerability · Go

CVE-2026-9094: Casdoor: GetTokenExchangeToken bypass through lack of cross-organization JWT signature check

criticalCVSS 3.1 9.8GHSA-c9w5-qp6m-m395

Casdoor versions 2.362.0 and earlier contain a vulnerability enabling cross-organization token exchange. The GetTokenExchangeToken function in object/tokenoauth.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.

Published May 28, 2026 · Updated Jul 9, 2026

Affected packages

github.com/casdoor/casdoor

Ecosystem
Go
Affected
< 2.387.0
Fixed in
2.387.0
Check
go list -m github.com/casdoor/casdoor

Advisory details

From the GitHub Advisory Database (CC BY 4.0).

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.

References

How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology

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