CVE-2026-1190

LOW EPSS 28.8%

Published Jan 26, 20265mo ago · Modified Jun 17, 20261w ago

3.1 CVSS 3.1

Low

Published Jan 26, 2026 5mo ago

Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score

3.1

Exploitability

1.6

Impact

1.4

Vector string

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N

Attack Vector Network

Attack Complexity High

Privileges Required None

User Interaction Required

Scope Unchanged

Confidentiality None

Integrity Low

Availability None

Threat Intelligence

EPSS Exploit Probability

28.8% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-112

References 4

access.redhat.com https://access.redhat.com/errata/RHSA-2026:3947
access.redhat.com https://access.redhat.com/errata/RHSA-2026:3948
access.redhat.com https://access.redhat.com/security/cve/CVE-2026-1190
bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2430835

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.