6.8

CVE-2026-4630

Keycloak: keycloak: unauthorized resource access and data modification via insecure direct object reference

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Redhat ≫ Build Of Keycloak Version >= 26.4 < 26.4.12
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.3% 0.218
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
secalert@redhat.com 6.8 1.6 5.2
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE-639 Authorization Bypass Through User-Controlled Key

The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

https://access.redhat.com/security/cve/CVE-2026-4630
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2450245
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:19597
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:19596
Vendor Advisory