| Package | Affected versions | Patched versions |
|---|---|---|
| build of keycloak | ≥ 26.4, < 26.4.14≥ 26.6, < 26.6.5 | 26.4.1426.6.5 |
| data grid | = 8.0 | |
| single sign-on | = 7.0 |
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.
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