Important: Red Hat Security Advisory: RHACS 4.11.6 security and bug fix update

Updated images are now available for Red Hat Advanced Cluster Security RHACS, which typically include new features, bug fixes, and/or security patches. See the release notes link in the references section for a description of the fixes and enhancements in this particular release...

CVE-2026-103314

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...

CVE-2026-103314 Stackrox: stackrox: saml response replay allows multiple central authentication tokens

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...

CVE-2026-103314

A flaw exists in Red Hat Advanced Cluster Security for Kubernetes (RHACS) where the Central SAML authentication ACS endpoint fails to retain used SAML assertion or response identifiers. This allows an attacker to perform a replay attack by submitting a valid, unexpired signed SAML response multip...

CVE-2026-103314

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...

EUVD-2026-104252

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...

CVE-2026-103314 Stackrox: stackrox: saml response replay allows multiple central authentication tokens

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...

PT-2026-117374

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...

BIT-ELASTICSEARCH-2026-103009 Authorization Bypass Through User-Controlled Key in Elasticsearch Leading to Information Disclosure

Authorization Bypass Through User-Controlled Key CWE-639 in Elasticsearch can lead to Information Disclosure via a specially crafted cross-cluster search request that references an unauthorized shard identifier. Elasticsearch contains an authorization bypass weakness in its handling of...

PT-2026-111340

Authorization Bypass Through User-Controlled Key CWE-639 in Elasticsearch can lead to Information Disclosure via a specially crafted cross-cluster search request that references an unauthorized shard identifier. Elasticsearch contains an authorization bypass weakness in its handling of...

Important: Red Hat Security Advisory: RHACS 4.11.5 security and bug fix update

Updated images are now available for Red Hat Advanced Cluster Security RHACS, which typically include new features, bug fixes, and/or security patches. See the release notes link in the references section for a description of the fixes and enhancements in this particular release...

CVE-2026-103009

A flaw was found in Elasticsearch. When processing cross-cluster search requests under the Remote Cluster Security RCS model, the service validates permissions using one target identifier while retrieving data using a separate identifier. An authenticated attacker possessing a valid cross-cluster...

CVE-2026-103009

Authorization Bypass Through User-Controlled Key CWE-639 in Elasticsearch can lead to Information Disclosure via a specially crafted cross-cluster search request that references an unauthorized shard identifier. Elasticsearch contains an authorization bypass weakness in its handling of...

CVE-2026-103009 Authorization Bypass Through User-Controlled Key in Elasticsearch Leading to Information Disclosure

Authorization Bypass Through User-Controlled Key CWE-639 in Elasticsearch can lead to Information Disclosure via a specially crafted cross-cluster search request that references an unauthorized shard identifier. Elasticsearch contains an authorization bypass weakness in its handling of...

CVE-2026-103009 Authorization Bypass Through User-Controlled Key in Elasticsearch Leading to Information Disclosure

Authorization Bypass Through User-Controlled Key CWE-639 in Elasticsearch can lead to Information Disclosure via a specially crafted cross-cluster search request that references an unauthorized shard identifier. Elasticsearch contains an authorization bypass weakness in its handling of...

EUVD-2026-93939

Authorization Bypass Through User-Controlled Key CWE-639 in Elasticsearch can lead to Information Disclosure via a specially crafted cross-cluster search request that references an unauthorized shard identifier. Elasticsearch contains an authorization bypass weakness in its handling of...

CVE-2026-103009

Authorization Bypass Through User-Controlled Key CWE-639 in Elasticsearch can lead to Information Disclosure via a specially crafted cross-cluster search request that references an unauthorized shard identifier. Elasticsearch contains an authorization bypass weakness in its handling of...

CVE-2026-103009 Authorization Bypass Through User-Controlled Key in Elasticsearch Leading to Information Disclosure

Authorization Bypass Through User-Controlled Key CWE-639 in Elasticsearch can lead to Information Disclosure via a specially crafted cross-cluster search request that references an unauthorized shard identifier. Elasticsearch contains an authorization bypass weakness in its handling of...

CVE-2026-103009

Elasticsearch contains an authorization bypass weakness (CWE-639) within the Remote Cluster Security (RCS) 2.0 model during cross-cluster search requests. The flaw exists because the system validates a request against one identifying attribute while using a separate, independently-supplied attrib...

Elasticsearch 8.19.23, 9.4.8, 9.5.5 Security Update (ESA-2026-199)

Authorization Bypass Through User-Controlled Key in Elasticsearch Leading to Information Disclosure Authorization Bypass Through User-Controlled Key CWE-639 in Elasticsearch can lead to Information Disclosure via a specially crafted cross-cluster search request that references an unauthorized sha...