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

Description

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.

Timeline

Scores

EPSS (exploitation in 30 days)

0.41% · top 64% of all CVEs (14 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.7.

Affected products

• Red Hat · Red Hat build of Keycloak 26.2

  • unaffected 26.2.14-1 – < *

• Red Hat · Red Hat build of Keycloak 26.2

  • unaffected 26.2-16 – < *

• Red Hat · Red Hat build of Keycloak 26.2

  • unaffected 26.2-16 – < *

• Red Hat · Red Hat build of Keycloak 26.2.14

  All versions: unaffected

• Red Hat · Red Hat build of Keycloak 26.4

  • unaffected 26.4.10-1 – < *

• Red Hat · Red Hat build of Keycloak 26.4

  • unaffected 26.4-12 – < *

• Red Hat · Red Hat build of Keycloak 26.4

  • unaffected 26.4-12 – < *

• Red Hat · Red Hat build of Keycloak 26.4.10

  All versions: unaffected

• Red Hat · Red Hat Single Sign-On 7.6.13

  All versions: unaffected

• Red Hat · Red Hat Single Sign-On 7.6 for RHEL 7

  • unaffected 0:18.0.20-1.redhat_00001.1.el7sso – < *

• Red Hat · Red Hat Single Sign-On 7.6 for RHEL 8

  • unaffected 0:18.0.20-1.redhat_00001.1.el8sso – < *

• Red Hat · Red Hat Single Sign-On 7.6 for RHEL 9

  • unaffected 0:18.0.20-1.redhat_00001.1.el9sso – < *

• Red Hat · RHEL-8 based Middleware Containers

  • unaffected 7.6-85 – < *

Affected packages

From reviewed advisories of the GitHub Advisory Database.

• Mavenorg.keycloak:keycloak-servicesGHSA-794g-x443-36f7 (opens in a new tab)

What to do

Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• EUVD EUVD-2026-12688 (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisory GHSA-794g-x443-36f7 (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-2092](https://cveledger.app/badge/CVE-2026-2092.svg)](https://cveledger.app/cve/CVE-2026-2092)

Record last updated 6 Oct 2026, 16:58 UTC.