CVE-2026-2092 — Keycloak-services: keycloak: unauthorized access via improper validation of encrypted saml assertions

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Red Hat / Red Hat build of Keycloak 26.2	unaffected 26.2.14-1 before *
Red Hat / Red Hat build of Keycloak 26.2	unaffected 26.2-16 before *
Red Hat / Red Hat build of Keycloak 26.2	unaffected 26.2-16 before *
Red Hat / Red Hat build of Keycloak 26.2.14	unaffected
Red Hat / Red Hat build of Keycloak 26.4	unaffected 26.4.10-1 before *
Red Hat / Red Hat build of Keycloak 26.4	unaffected 26.4-12 before *
Red Hat / Red Hat build of Keycloak 26.4	unaffected 26.4-12 before *
Red Hat / Red Hat build of Keycloak 26.4.10	unaffected
Red Hat / Red Hat Single Sign-On 7.6.13	unaffected
Red Hat / Red Hat Single Sign-On 7.6 for RHEL 7	unaffected 0:18.0.20-1.redhat_00001.1.el7sso before *
Red Hat / Red Hat Single Sign-On 7.6 for RHEL 8	unaffected 0:18.0.20-1.redhat_00001.1.el8sso before *
Red Hat / Red Hat Single Sign-On 7.6 for RHEL 9	unaffected 0:18.0.20-1.redhat_00001.1.el9sso before *
Red Hat / RHEL-8 based Middleware Containers	unaffected 7.6-85 before *

CWE

CWE-1287

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

redhat-SADP