Vulnerability Description
A flaw was found in Keycloak. An authenticated client could exploit an Insecure Direct Object Reference (IDOR) vulnerability in the Authorization Services Protection API endpoint. By knowing or obtaining a resource's unique identifier (UUID) belonging to another Resource Server within the same realm, the client could bypass authorization checks. This allows the client to perform unauthorized GET, PUT, and DELETE operations on resources, leading to information disclosure and potential unauthorized modification or deletion of data.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Build Of Keycloak | >= 26.4, < 26.4.12 |
Related Weaknesses (CWE)
References
- https://access.redhat.com/errata/RHSA-2026:19596Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:19597Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2026-4630Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2450245Vendor Advisory
FAQ
What is CVE-2026-4630?
CVE-2026-4630 is a vulnerability with a CVSS score of 6.8 (MEDIUM). A flaw was found in Keycloak. An authenticated client could exploit an Insecure Direct Object Reference (IDOR) vulnerability in the Authorization Services Protection API endpoint. By knowing or obtain...
How severe is CVE-2026-4630?
CVE-2026-4630 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-4630?
Check the references section above for vendor advisories and patch information. Affected products include: Redhat Build Of Keycloak.