Review reviewHigh

CVE-2026-2092

Red Hat Red Hat build of Keycloak 26.2, Red Hat build of Keycloak 26.2.14, Red Hat build of Keycloak 26.4

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: 7.7
EPSS: 0.30%
CISA KEV: Not listed
Published: 2026.03.18

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.30%

Technical severityCVSS 7.7

Vulnerability overview

Affected product and versions

Product: Red Hat Red Hat build of Keycloak 26.2, Red Hat build of Keycloak 26.2.14, Red Hat build of Keycloak 26.4
Affected versions: See the vendor advisory and NVD configuration data
Fixed versions: No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that Red Hat Red Hat build of Keycloak 26.2, Red Hat build of Keycloak 26.2.14, Red Hat build of Keycloak 26.4 and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L
CWE: CWE-1287