A flaw was found in Keycloak's SAML brokering functionality. When Keycloak is configured as a client in a Security Assertion Markup Language (SAML) setup, it fails to validate the `NotOnOrAfter` timestamp within the `SubjectConfirmationData`. This allows an attacker to delay the expiration of SAML responses, potentially extending the time a response is considered valid and leading to unexpected session durations or resource consumption.
References
Configurations
No configuration.
History
No history.
Information
Published : 2026-01-26 20:16
Updated : 2026-01-27 14:59
NVD link : CVE-2026-1190
Mitre link : CVE-2026-1190
CVE.ORG link : CVE-2026-1190
JSON object : View
Products Affected
No product.
CWE
CWE-112
Missing XML Validation
