CVE-2026-2092: Keycloak: Unauthorized access via improper validation of encrypted SAML assertions

Keycloak: Unauthorized access via improper validation of encrypted SAML assertions

F-KEYCLOAK-SAML-001

Public snapshot: 26 Sep 2026. Status, releases and attribution belong to each source below; none is inferred from another record.

Recorded evidence

7.7high

CVE-2026-2092CVEkeycloak/keycloak

Keycloak: Unauthorized access via improper validation of encrypted SAML assertions

Fixed in: 26.2.14, 26.4.10, 26.5.5, 26.6.0

patched

details

Finding IDs: F-KEYCLOAK-SAML-001
CVE: CVE-2026-2092
GHSA: GHSA-794g-x443-36f7
Status: patched
CWE: CWE-1287
Fixed in: 26.2.14, 26.4.10, 26.5.5, 26.6.0
Recorded credit: reporter: @1seal
Note: GHSA-794g-x443-36f7; improper validation of encrypted SAML assertions can allow unauthorized access via crafted SAML response.
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L
CVE registry state: PUBLISHED
CVE state checked: 23 Sep 2026
Upstream title: Keycloak: Unauthorized access via improper validation of encrypted SAML assertions
Upstream CWE: CWE-1287
Upstream publication: 29 May 2026
Upstream updated: 29 May 2026
Metadata fetched: 23 Sep 2026
Upstream @1seal credit: @1seal: reporter (accepted)

F-KEYCLOAK-SAML-001: Verification failures. Encrypted SAML assertion handling bypasses required validation. Reviewed 24 Sep 2026. Mechanism assessed by 1seal.

Mechanism source for F-KEYCLOAK-SAML-001

Security area (1seal assessment): Identity. Insufficient validation of encrypted SAML assertions permits unauthorized authentication; the affected property is the asserted user identity. Reviewed 24 Sep 2026.

Clarify or correct this record privately. The email subject includes the finding ID. For an existing case, continue the agreed private thread. Do not post unpublished vulnerability details in public issues. Research disclosure policy.

How this page groups evidence

This identifier groups recorded evidence; it is not an additional CVE, independent-vulnerability count or guarantee of vendor confirmation. Fixed code, released versions, attribution and independent discovery are distinct claims. Absent metadata means not recorded, not disproved. Counting rules.