Description

A flaw was found in Keycloak. This improper input validation vulnerability occurs because Keycloak accepts RFC-compliant matrix parameters in URL path segments, while common reverse proxy configurations may ignore or mishandle them. A remote attacker can craft requests to mask path segments, potentially bypassing proxy-level path filtering. This could expose administrative or sensitive endpoints that operators believe are not externally reachable.

INFO

Published Date :

2026-01-15T12:06:21.251Z

Last Modified :

2026-01-15T14:45:41.540Z

Source :

redhat
AFFECTED PRODUCTS

The following products are affected by CVE-2026-0976 vulnerability.

Vendors Products
Redhat
  • Build Keycloak
  • Jboss Enterprise Application Platform
  • Jbosseapxp
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-0976.

URL Resource
https://access.redhat.com/security/cve/CVE-2026-0976 cve-icon cve-icon
https://bugzilla.redhat.com/show_bug.cgi?id=2429869 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-0976 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-0976 cve-icon
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