CVE-2026-4874

LOW

3.1

Descricao

A flaw was found in Keycloak. An authenticated attacker can perform Server-Side Request Forgery (SSRF) by manipulating the `client_session_host` parameter during refresh token requests. This occurs when a Keycloak client is configured to use the `backchannel.logout.url` with the `application.session.host` placeholder. Successful exploitation allows the attacker to make HTTP requests from the Keycloak server’s network context, potentially probing internal networks or internal APIs, leading to information disclosure.

Detalhes CVE

Pontuacao CVSS v3.13.1

SeveridadeLOW

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

Vetor de ataqueNETWORK

ComplexidadeHIGH

Privilegios necessariosLOW

Interacao do usuarioNONE

Publicado3/26/2026

Ultima modificacao4/1/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

redhat:build_of_keycloakredhat:jboss_enterprise_application_platformredhat:jboss_enterprise_application_platform_expansion_packredhat:single_sign-on

Fraquezas (CWE)

CWE-918

Referencias

https://access.redhat.com/security/cve/CVE-2026-4874(secalert@redhat.com)

https://bugzilla.redhat.com/show_bug.cgi?id=2451611(secalert@redhat.com)

Correlacoes IOC

Sem correlacoes registradas

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