EUVD-2026-30879
GHSA-c739-f6xw-6pv2
CVSS VectorNVD
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Lifecycle Timeline
1DescriptionNVD
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.
AnalysisAI
Keycloak's Authorization Services Protection API is vulnerable to an Insecure Direct Object Reference (IDOR) flaw that allows authenticated low-privileged clients to perform unauthorized GET, PUT, and DELETE operations on resources owned by a different Resource Server within the same realm. By supplying a resource UUID belonging to a peer Resource Server - which a client can obtain through enumeration or disclosure - the attacker bypasses Keycloak's authorization enforcement entirely. …
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