GitHub Advisoryadvisory · Maven
GHSA-794g-x443-36f7 Keycloak: Unauthorized access via improper validation of encrypted SAML assertions
HIGH
Official page ↗
- Aliases
- CVE-2026-2092
- Ecosystem
- Maven
- Packages
- org.keycloak:keycloak-services
- Severity
- High
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L
- Weaknesses
- CWE-1287
- Reviewed
- 2026-07-02
Affected packages
• Maven org.keycloak:keycloak-services: <= 26.2.5 (no fix yet)
• Maven org.keycloak:keycloak-services: >= 26.3.0, <= 26.4.7 (no fix yet)
• Maven org.keycloak:keycloak-services: >= 26.5.0, < 26.5.5 → fixed in 26.5.5
Description
Keycloak's 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, injecting an encrypted assertion for an arbitrary principal, leading to unauthorized access and potential information disclosure.
Related
Alias · CVE (1)
- CVE-2026-2092 A flaw was found in Keycloak. vulnerability
Weakness · CWE (1)
- CWE-1287 Improper Validation of Specified Type of Input weakness
References
- https://github.com/keycloak/keycloak/security/advisories/GHSA-794g-x443-36f7 web
- https://nvd.nist.gov/vuln/detail/CVE-2026-2092 advisory
- https://github.com/keycloak/keycloak/pull/46929 web
- https://github.com/keycloak/keycloak/commit/b40a25908d937bb0563ea516487bc2c7c1d92508 web
- https://access.redhat.com/errata/RHSA-2026:3925 web
- https://access.redhat.com/errata/RHSA-2026:3926 web
- https://access.redhat.com/errata/RHSA-2026:3947 web
- https://access.redhat.com/errata/RHSA-2026:3948 web
- https://access.redhat.com/security/cve/CVE-2026-2092 web
- https://bugzilla.redhat.com/show_bug.cgi?id=2437296 web
- https://github.com/keycloak/keycloak package
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2092.json web