Keycloak-services: keycloak: unauthorized access via improper validation of encrypted saml assertions
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.
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-2092US | — | — | ||
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… | ||||
references
External citations — patches, advisories, analysis.
- https://access.redhat.com/errata/RHSA-2026:3925ADVISORY
- https://access.redhat.com/errata/RHSA-2026:3926ADVISORY
- https://access.redhat.com/errata/RHSA-2026:3947ADVISORY
- https://access.redhat.com/errata/RHSA-2026:3948ADVISORY
- https://access.redhat.com/errata/RHSA-2026:76128WEB
- https://access.redhat.com/errata/RHSA-2026:76129WEB
- https://access.redhat.com/errata/RHSA-2026:76130WEB
- https://access.redhat.com/errata/RHSA-2026:76132WEB
Advisories like this name the exposed products attackers go after on your perimeter. See what is exposed on your perimeter with a free passive scan.
Free scan