Improper Validation of Specified Type of Input Affecting rh-sso7-keycloak package, versions <0:18.0.20-1.redhat_00001.1.el8sso


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.37% (30th percentile)

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  • Snyk IDSNYK-RHEL8-RHSSO7KEYCLOAK-21008748
  • published16 Oct 2026
  • disclosed5 Mar 2026

Introduced: 5 Mar 2026

CVE-2026-2092  (opens in a new tab)
CWE-1287  (opens in a new tab)

How to fix?

Upgrade RHEL:8 rh-sso7-keycloak to version 0:18.0.20-1.redhat_00001.1.el8sso or higher.
This issue was patched in RHSA-2026:76129.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rh-sso7-keycloak package and not the rh-sso7-keycloak package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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 Base Scores

version 3.1