Keycloak: Unauthorized access via improper validation of encrypted SAML assertions
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.
01
describes (1)
Related CVEs.
| ID | severity | exploitable |
|---|---|---|
| CVE-2026-2092US | — | — |
02
references
External citations — patches, advisories, analysis.
- https://access.redhat.com/errata/RHSA-2026:3925WEB
- https://access.redhat.com/errata/RHSA-2026:3926WEB
- https://access.redhat.com/errata/RHSA-2026:3947WEB
- https://access.redhat.com/errata/RHSA-2026:3948WEB
- https://access.redhat.com/security/cve/CVE-2026-2092WEB
- https://bugzilla.redhat.com/show_bug.cgi?id=2437296WEB
- https://github.com/keycloak/keycloakPACKAGE
- https://github.com/keycloak/keycloak/commit/b40a25908d937bb0563ea516487bc2c7c1d92508WEB
scry
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