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CVE-2026-9097 — Vulnerability in github.com/casdoor/casdoor — CVE...

CRITICAL

Casdoor doesn't verify that a JWT used for token exchange is still active

Published May 28, 2026Updated July 7, 2026Source: osv

Summary

Casdoor versions 2.362.0 and earlier do not verify that a JWT used for token exchange is still active. The GetTokenExchangeToken() function in object/token_oauth.go validates the JWT signature and parses its claims, but never queries the Token table to verify whether the subject token has been revoked or invalidated. Because the revocation check is entirely absent, administrators are unable to terminate active sessions or revoke compromised tokens.

Advisory Timeline

  • First published May 28, 2026 (137 days ago).
  • Last revised July 7, 2026 — 40 days after initial publication.

Affected Packages (1)

Affects 1 ecosystem: go (1).

PackageEcosystemAffectedFixed In
github.com/casdoor/casdoor
go
All versionsRange-based data available

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2026-9097?
Casdoor doesn't verify that a JWT used for token exchange is still active This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2026-9097?
CVE-2026-9097 affects github.com/casdoor/casdoor. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-9097 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-339w-3hqm-9pjc
GO-2026-5892

Related CVEs

  • CVE-2026-9093
    CRITICAL

    Casdoor does not validate the AudienceRestriction element in SAML assertions

  • CVE-2026-9094
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  • CVE-2026-9090
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  • CVE-2026-9098
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