Breaking the Bulkhead: Demystifying Cross-Namespace Reference Vulnerabilities in Kubernetes Operators

Kubernetes Operators, automated tools designed to manage application lifecycles within Kubernetes clusters, extend the functionalities of Kubernetes, and reduce the operational burden on human engineers. While Operators significantly simplify DevOps workflows, they introduce new security risks. I...

Moderate: Red Hat Security Advisory: Red Hat OpenShift GitOps security update

Red Hat OpenShift GitOps v1.16.2 release An update is now available for Red Hat OpenShift GitOps. Security Fixes: openshift-gitops-operator-container: Namespace Isolation Break gitops-1.16 Bug Fixes: Gitops operator is not accepting regular expression in sourceNamespaces - Application in...

Important: Red Hat Security Advisory: Errata Advisory for Red Hat OpenShift GitOps v1.14.4 security update

Errata Advisory for Red Hat OpenShift GitOps v1.14.4 security update. Errata Advisory for Red Hat OpenShift GitOps v1.14.4 security release. Security Fixes: openshift-gitops-argocd-container: Improper URL Sanitization in Argo CD Repository Page Allows Cross-Site Scripting XSS gitops-1.14...

Important: Red Hat Security Advisory: Errata Advisory for Red Hat OpenShift GitOps v1.15.2 security update

Errata Advisory for Red Hat OpenShift GitOps 1.15.2 release Errata Advisory for Red Hat OpenShift GitOps 1.15.2 release Security Fixes: openshift-gitops-operator-container: Namespace Isolation Break gitops-1.15 openshift-gitops-argocd-container: Go JOSE's Parsing Vulnerable to Denial of Service...

Privilege Escalation

github.com/rancher/rancher is vulnerable to privilege escalation. The vulnerability is due to improper namespace isolation due to using the project name as the namespace for storing related resources, allowing users to gain access to projects in different clusters...

PT-2025-22184

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A vulnerability in the Linux kernel has been resolved, related to the alignment of the section vmemmap start address to PAGE SIZE. This issue could lead to a kernel crash when the sectio...

SUSE CVE-2025-29781

The Bare Metal Operator BMO implements a Kubernetes API for managing bare metal hosts in Metal3. Baremetal Operator enables users to load Secret from arbitrary namespaces upon deployment of the namespace scoped Custom Resource BMCEventSubscription. Prior to versions 0.8.1 and 0.9.1, an adversary...

HashiCorp Nomad 安全漏洞

HashiCorp Nomad is a simple and flexible scheduler and orchestrator from the US-based HashiCorp Inc. for managing containerized and non-containerized applications at scale, both locally and in the cloud. HashiCorp Nomad suffers from a security vulnerability that stems from the fact that Nomad eve...

Unauthorized Rule Injection

ArgoCD is vulnerable to unauthorized rule injection. The vulnerability is due to improper namespace isolation, as the openshift.io/cluster-monitoring label is automatically applied to all namespaces deploying an ArgoCD CR instance, allowing them to create unauthorized PrometheusRule objects...

cri-o: Checkpoint restore can be triggered from different namespaces

A vulnerability was found in CRI-O, where it can be requested to take a checkpoint archive of a container and later be asked to restore it. When it does that restoration, it attempts to restore the mounts from the restore archive instead of the pod request. As a result, the validations run on the...

GO-2025-3427 Malicious PrometheusRule creation to all namespaces that deploy a ArgoCD CR instance in github.com/redhat-developer/gitops-operator

Malicious PrometheusRule creation to all namespaces that deploy a ArgoCD CR instance in github.com/redhat-developer/gitops-operator...

OpenShift GitOps Operator Namespace Isolation Break

A flaw was found in openshift-gitops-operator-container. The openshift.io/cluster-monitoring label is applied to all namespaces that deploy an ArgoCD CR instance, allowing the namespace to create a rogue PrometheusRule. This issue can have adverse effects on the platform monitoring stack, as the...

GHSA-58FX-7V9Q-3G56 OpenShift GitOps Operator Namespace Isolation Break

A flaw was found in openshift-gitops-operator-container. The openshift.io/cluster-monitoring label is applied to all namespaces that deploy an ArgoCD CR instance, allowing the namespace to create a rogue PrometheusRule. This issue can have adverse effects on the platform monitoring stack, as the...

CVE-2024-13484 Openshift-gitops-operator-container: namespace isolation break

A flaw was found in openshift-gitops-operator-container. The openshift.io/cluster-monitoring label is applied to all namespaces that deploy an ArgoCD CR instance, allowing the namespace to create a rogue PrometheusRule. This issue can have adverse effects on the platform monitoring stack, as the...

CVE-2024-13484 Openshift-gitops-operator-container: namespace isolation break

A flaw was found in openshift-gitops-operator-container. The openshift.io/cluster-monitoring label is applied to all namespaces that deploy an ArgoCD CR instance, allowing the namespace to create a rogue PrometheusRule. This issue can have adverse effects on the platform monitoring stack, as the...

CVE-2024-13484 Openshift-gitops-operator-container: namespace isolation break

A flaw was found in openshift-gitops-operator-container. The openshift.io/cluster-monitoring label is applied to all namespaces that deploy an ArgoCD CR instance, allowing the namespace to create a rogue PrometheusRule. This issue can have adverse effects on the platform monitoring stack, as the...

SUSE CVE-2020-15257

containerd is an industry-standard container runtime and is available as a daemon for Linux and Windows. In containerd before versions 1.3.9 and 1.4.3, the containerd-shim API is improperly exposed to host network containers. Access controls for the shim's API socket verified that the connecting...

SUSE CVE-2022-0492

A vulnerability was found in the Linux kernel's cgroupreleaseagentwrite in the kernel/cgroup/cgroup-v1.c function. This flaw, under certain circumstances, allows the use of the cgroups v1 releaseagent feature to escalate privileges and bypass the namespace isolation unexpectedly...

CVE-2021-46912

In the Linux kernel, the following vulnerability has been resolved: net: Make tcpallowedcongestioncontrol readonly in non-init netns Currently, tcpallowedcongestioncontrol is global and writable; writing to it in any net namespace will leak into all other net namespaces...

CVE-2021-46912

In the Linux kernel, the following vulnerability has been resolved: net: Make tcpallowedcongestioncontrol readonly in non-init netns Currently, tcpallowedcongestioncontrol is global and writable; writing to it in any net namespace will leak into all other net namespaces...