CVE-2026-0976

LOW

3.7

Beschreibung

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.

CVE Details

CVSS v3.1 Bewertung3.7

SchweregradLOW

CVSS VektorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

AngriffsvektorNETWORK

KomplexitatHIGH

Erforderliche PrivilegienNONE

BenutzerinteraktionNONE

Veroffentlicht1/15/2026

Zuletzt geandert1/16/2026

Quellenvd

Honeypot-Sichtungen0

Schwachen (CWE)

CWE-20

Referenzen

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

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

IOC Korrelationen

Keine Korrelationen erfasst

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