CVE-2026-2092: fallo de gravedad alta en Red Hat build of Keycloak 26.2
Keycloak-services: keycloak: unauthorized access via improper validation of encrypted saml assertions
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.7epss 0.4%
A flaw was found in Keycloak. Keycloak's Security Assertion Markup Language (SAML) broker endpoint does not properly validate encrypted assertions when the overall SAML response is not signed. An attacker with a valid signed SAML assertion can exploit this by crafting a malicious SAML response. This allows the attacker to inject an encrypted assertion for an arbitrary principal, leading to unauthorized access and potential information disclosure.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L
Productos afectados
Red Hat · Red Hat build of Keycloak 26.2Red Hat · Red Hat build of Keycloak 26.2.14Red Hat · Red Hat build of Keycloak 26.4Red Hat · Red Hat build of Keycloak 26.4.10Red Hat · Red Hat Single Sign-On 7.6.13Red Hat · Red Hat Single Sign-On 7.6 for RHEL 7Red Hat · Red Hat Single Sign-On 7.6 for RHEL 8Red Hat · Red Hat Single Sign-On 7.6 for RHEL 9Red Hat · RHEL-8 based Middleware ContainersCVEs relacionadas — Red Hat build of Keycloak 26.2
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Referencias
https://access.redhat.com/errata/RHSA-2026:3925https://access.redhat.com/errata/RHSA-2026:3926https://access.redhat.com/errata/RHSA-2026:3947https://access.redhat.com/errata/RHSA-2026:3948https://access.redhat.com/errata/RHSA-2026:76128https://access.redhat.com/errata/RHSA-2026:76129https://access.redhat.com/errata/RHSA-2026:76130https://access.redhat.com/errata/RHSA-2026:76132https://access.redhat.com/errata/RHSA-2026:76134https://access.redhat.com/security/cve/CVE-2026-2092https://bugzilla.redhat.com/show_bug.cgi?id=2437296https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2092.json