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.
History

Tue, 20 Oct 2026 12:45:00 +0000

Type Values Removed Values Added
CPEs cpe:/a:redhat:advanced_cluster_security:4.11::el9
References

Tue, 20 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Mon, 19 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 19 Oct 2026 12:45:00 +0000

Type Values Removed Values Added
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.
Title Stackrox: stackrox: saml response replay allows multiple central authentication tokens
First Time appeared Redhat
Redhat advanced Cluster Security
Weaknesses CWE-294
CPEs cpe:/a:redhat:advanced_cluster_security:4
Vendors & Products Redhat
Redhat advanced Cluster Security
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2026-10-19T12:14:27.338Z

Updated: 2026-10-20T21:30:42.326Z

Reserved: 2026-09-30T11:57:54.198Z

Link: CVE-2026-103314

cve-icon Vulnrichment

Updated: 2026-10-19T15:06:19.037Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-19T13:16:53.617

Modified: 2026-10-20T13:16:38.277

Link: CVE-2026-103314

cve-icon Redhat

Severity : Important

Publid Date: 2026-10-19T10:00:00Z

Links: CVE-2026-103314 - Bugzilla