CVE-2026-0976

LOW

3.7

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.13.7

SeveridadeLOW

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

Vetor de ataqueNETWORK

ComplexidadeHIGH

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado1/15/2026

Ultima modificacao1/16/2026

Fontenvd

Avistamentos honeypot0

Fraquezas (CWE)

CWE-20

Referencias

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

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

Correlacoes IOC

Sem correlacoes registradas

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