🛡️ CVE-2026-4630
🟡 CVSS 6.8 — Medium ✅ No Known Exploit CWE-639 NVD
6.8
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity MEDIUM
CVSS Score 6.8
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE CWE-639
Public Exploit ✅ No
Source NVD
Published 2026-05-19
Updated 2026-06-04
Modified 2026-06-03
Fix URL N/A

Affected Packages

Software From version Fixed in
build-of-keycloak 26.4 26.4.12
unknown — —

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