Vulnerability Description
A flaw was found in the User-Managed Access (UMA) implementation of Keycloak. The issue occurs in the authorization token endpoint when processing permission tickets. If two different users own resources with the same name, the system incorrectly merges the permissions from both resources when one user requests an authorization token. This allows an attacker to gain access scopes on a victim's resource that were never intended to be shared.
CVSS Score
LOW
Related Weaknesses (CWE)
References
- https://access.redhat.com/security/cve/CVE-2026-94217
- https://bugzilla.redhat.com/show_bug.cgi?id=2537313
FAQ
What is CVE-2026-94217?
CVE-2026-94217 is a vulnerability with a CVSS score of 3.5 (LOW). A flaw was found in the User-Managed Access (UMA) implementation of Keycloak. The issue occurs in the authorization token endpoint when processing permission tickets. If two different users own resour...
How severe is CVE-2026-94217?
CVE-2026-94217 has been rated LOW with a CVSS base score of 3.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-94217?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.