CVE-2026-103314

Published: Oct 19, 2026Modified: Oct 20, 2026

7.4

Vector

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

Exploitability: 2.2 / Impact: 5.2

Source: secalert@redhat.com (Secondary)

Description

A flaw was found in Red Hat Advanced Cluster Security for Kubernetes (RHACS). The Central SAML authentication ACS endpoint does not retain used SAML assertion or response identifiers to prevent replay. An attacker who obtains a valid, unexpired signed SAML response can submit it multiple times and receive distinct Central authentication tokens for the mapped identity.

Related CWEs

CWE-294

Authentication Bypass by Capture-replay

A capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes).

References (3)

https://access.redhat.com/errata/RHSA-2026:85932

Source: secalert@redhat.com

https://access.redhat.com/security/cve/CVE-2026-103314

Source: secalert@redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=2543879

Source: secalert@redhat.com

Timeline

No history available yet.