Mmastodon TechnologyCybersecurity first seen 21 h ago, last 21 h ago, peak #11

High-severity SAML replay flaw found in Red Hat security platform

Original: 🚨 EUVD-2026-104252 📊 Score: 7.4/10 (CVSS v3.1) 📅 Updated: 2026-10-19 📝 A flaw was found in Red Hat Advanced Cluster Secu

A vulnerability tracked as EUVD-2026-104252, with a CVSS score of 7.4, has been identified in Red Hat Advanced Cluster Security for Kubernetes. The flaw lies in the Central SAML authentication endpoint, which does not retain used SAML assertion or response identifiers, leaving it open to replay attacks. Security teams are watching the advisory for patch guidance and assessing exposure in clusters running the platform.

Why now: Organisations using RHACS are checking whether the newly published high-severity vulnerability affects their Kubernetes deployments.

Red HatRed Hat Advanced Cluster Security for KubernetesKubernetesEUVD-2026-104252

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Evidence

• 🚨 EUVD-2026-104252 📊 Score: 7.4/10 (CVSS v3.1) 📅 Updated: 2026-10-19 📝 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… · EUVD_Bot

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