CVE-2026-0976

LOW

3.7

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.

Details CVE

Score CVSS v3.13.7

SeveriteLOW

Vecteur CVSSCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Vecteur d'attaqueNETWORK

ComplexiteHIGH

Privileges requisNONE

Interaction utilisateurNONE

Publie1/15/2026

Derniere modification1/16/2026

Sourcenvd

Observations honeypot0

Faiblesses (CWE)

CWE-20

References

https://access.redhat.com/security/cve/CVE-2026-0976(secalert@redhat.com)

https://bugzilla.redhat.com/show_bug.cgi?id=2429869(secalert@redhat.com)

Correlations IOC

Aucune correlation enregistree

This product uses data from the NVD API but is not endorsed or certified by the NVD.