CVE-2026-41050 Helm impersonation bypass of `RESTClientGetter` retains `cluster-admin` during template rendering

Fleet's Helm deployer did not fully apply ServiceAccount impersonation in two code paths, allowing a tenant with git push access to a Fleet-monitored repository to read secrets from any namespace on every downstream cluster targeted by their GitRepo...

CVE-2026-41050 Helm impersonation bypass of `RESTClientGetter` retains `cluster-admin` during template rendering

Fleet's Helm deployer did not fully apply ServiceAccount impersonation in two code paths, allowing a tenant with git push access to a Fleet-monitored repository to read secrets from any namespace on every downstream cluster targeted by their GitRepo...

Fleet 安全漏洞

Fleet is an open-source device management platform developed by Fleet Device Management. It supports various operating systems and devices, and helps IT and security teams with device management, vulnerability reporting, MDM operations, etc. There is a security vulnerability in Fleet, which stems...

Important: Red Hat Security Advisory: multicluster engine for Kubernetes v2.11.0 General Availability

The multicluster engine for Kubernetes 2.11 General Availability release images, which add new features and enhancements, bug fixes, and updated container images. The multicluster engine for Kubernetes v2.11 images The multicluster engine for Kubernetes provides the foundational components that a...

Critical: Red Hat Security Advisory: Red Hat Developer Hub 1.9.4 release.

Red Hat Developer Hub 1.9.4 has been released. Red Hat Developer Hub RHDH is Red Hat's enterprise-grade, self-managed, customizable developer portal based on Backstage.io. RHDH is supported on OpenShift and other major Kubernetes clusters AKS, EKS, GKE. The core features of RHDH include a single...

CVE-2026-31431: Copy Fail vulnerability enables Linux root privilege escalation across cloud environments

In this article 1. Vulnerability details 2. Mitigation and protection guidance 3. Microsoft Defender XDR detections 4. References 5. Learn more Microsoft Defender is investigating a high-severity local privilege escalation vulnerability CVE-2026-31431 affecting multiple major Linux distributions...

Important: Red Hat Security Advisory: Assisted Installer RHEL 9 components for Multicluster Engine for Kubernetes 2.11.1

Assisted installer RHEL 9 components for the multicluster engine for Kubernetes 2.11.1 General Availability release, with updates to container images. Assisted Installer RHEL 9 integrates components for the general multicluster engine for Kubernetes 2.11.1 release that simplify the process of...

CVE-2026-7163

A vulnerability in the assisted-service REST API, an optional Assisted Installer assisted-service component in the Multicluster Engine MCE, allows an authenticated user with minimal namespace-scoped privileges to obtain administrative credentials for arbitrary clusters provisioned through the hub...

Important: Red Hat Security Advisory: Assisted Installer RHEL 9 components for Multicluster Engine for Kubernetes 2.10.2

Assisted installer RHEL 9 components for the multicluster engine for Kubernetes 2.10.2 General Availability release, with updates to container images. Assisted Installer RHEL 9 integrates components for the general multicluster engine for Kubernetes 2.10.2 release that simplify the process of...

Important: Red Hat Security Advisory: Assisted Installer RHEL 9 components for Multicluster Engine for Kubernetes 2.7.10

Assisted installer RHEL 9 components for the multicluster engine for Kubernetes 2.7.10 General Availability release, with updates to container images. Assisted Installer RHEL 9 integrates components for the general multicluster engine for Kubernetes 2.7.10 release that simplify the process of...

Important: Red Hat Security Advisory: multicluster engine for Kubernetes v2.9.3 security update

The multicluster engine for Kubernetes 2.9 General Availability release images, which add new features and enhancements, bug fixes, and updated container images. The multicluster engine for Kubernetes v2.9 images The multicluster engine for Kubernetes provides the foundational components that are...

SUSE CVE-2026-41068

Kyverno is a policy engine designed for cloud native platform engineering teams. The patch for CVE-2026-22039 fixed cross-namespace privilege escalation in Kyverno's apiCall context by validating the URLPath field. However, the ConfigMap context loader has the identical vulnerability - the...

CVE-2026-41068

Kyverno is a policy engine designed for cloud native platform engineering teams. The patch for CVE-2026-22039 fixed cross-namespace privilege escalation in Kyverno's apiCall context by validating the URLPath field. However, the ConfigMap context loader has the identical vulnerability — the...

PT-2026-32437

A use-after-free vulnerability can be triggered in sharded clusters by an authenticated user with the read role who issues a specially crafted $lookup or $graphLookup aggregation pipeline...

EUVD-2026-19690

A flaw was found in Open Cluster Management OCM, the technology underlying Red Hat Advanced Cluster Management ACM. Improper validation of Kubernetes client certificate renewal allows a managed cluster administrator to forge a client certificate that can be approved by the OCM controller. This...

CVE-2026-4740

A flaw was found in Open Cluster Management OCM, the technology underlying Red Hat Advanced Cluster Management ACM. Improper validation of Kubernetes client certificate renewal allows a managed cluster administrator to forge a client certificate that can be approved by the OCM controller. This...

CVE-2026-4740 Rhacm: open cluster management (ocm): cross-cluster privilege escalation via improper kubernetes client certificate renewal validation

A flaw was found in Open Cluster Management OCM, the technology underlying Red Hat Advanced Cluster Management ACM. Improper validation of Kubernetes client certificate renewal allows a managed cluster administrator to forge a client certificate that can be approved by the OCM controller. This...

PT-2026-29583

Name of the Vulnerable Software and Affected Versions Temporal Server versions 1.29.0 and later Description A user with a writer role in an attacker-controlled namespace could signal, delete, and reset workflows or activities in a victim namespace on the same cluster. Exploitation requires the...

How to Configure krb5.conf for Cross-Domain Hyper-V Cluster Management

Purpose This article documents how to configure the /etc/krb5.conf file on the Veeam Software Appliance VSA to enable Kerberos authentication when managing a Microsoft Hyper-V cluster whose nodes belong to a different Active Directory domain than the backup server. As noted in the VBR 13 User Gui...

CVE-2026-33073 discourse-subscriptions plugin leaking stripe API key in multisite environment

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.3, 2026.2.0-latest to before 2026.2.2, and 2026.3.0-latest to before 2026.3.0, the discourse-subscriptions plugin leaks stripe API keys across sites in a multisite cluster resulting in the potential fo...