CVEvulnerability

CVE-2026-15573

8.1 HIGH Published 2026-08-05 Modified 2026-08-31 Official page ↗
Status
Modified
Published
2026-08-05
Last modified
2026-08-31
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.1 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Weaknesses
CWE-178, CWE-551

Description

A flaw was found in Keycloak's Authorization Services. The component responsible for matching request paths to security policies (PathMatcher) does not properly normalize URIs before comparison. By adding extra characters like a trailing slash or matrix parameters to a URL, an attacker can trick the system into applying a less restrictive security policy than intended. This allows an authenticated user to access administrative or restricted areas they should not have permission to see.

Affected configurations

• redhat build of keycloak (>= 26.4 < 26.4.14) • redhat build of keycloak (>= 26.6 < 26.6.5) • redhat data grid 8.0 • redhat jboss enterprise application platform expansion pack • redhat single sign-on 7.0

Related

Weakness · CWE (2)

  • CWE-178 Improper Handling of Case Sensitivity weakness
  • CWE-551 Incorrect Behavior Order: Authorization Before Parsing and Canonicalization weakness

References