CVE-2026-9097
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedCasdoor 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the JWT signature and parses its claims, but never queries the Token table to verify whether the subject token has been revoked or invalidated.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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceCasdoor's GetTokenExchangeToken() function in object/token_oauth.go validates JWT signatures and parses claims but fails to query the Token table to verify whether the token has been revoked or is still active. This allows revoked or invalidated tokens to continue functioning in token exchange operations, enabling session hijacking and preventing administrators from terminating compromised sessions.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- 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
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Determine installed Casdoor versionCheck the Casdoor version file, container tag, or API endpoint (e.g., /api/version) that reports the running software versionAffected if Version is 2.362.0 or earlier (the vulnerability was fixed after this version)
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Identify if token exchange feature is in useReview application logs or configuration for calls to /api/token-exchange endpoint or usage of GetTokenExchangeToken() function in object/token_oauth.goAffected if Token exchange operations are being performed in the environment
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Verify token revocation is not enforced on exchangeRevoke an active token via admin interface or API, then attempt a token exchange using that revoked token; observe whether the exchange succeeds despite revocationAffected if Revoked tokens can still be exchanged successfully (confirms the vulnerability is present)
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Check database Token table query behaviorReview application logs or code path for token exchange requests to confirm whether the Token table is queried for revocation status during GetTokenExchangeToken() executionAffected if No database query to Token table occurs during token exchange validation
If Casdoor version is 2.362.0 or earlier and token exchange functionality is in use, the environment is likely affected by this revocation bypass flaw.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpgrade to a version newer than 2.362.0 that implements token revocation checking; until then, consider network-level access restrictions or implementing external token blacklist monitoring.
- Consultation2.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-9097 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-9097 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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