CVE-2026-53718

Envoy Gateway prior to 1.7.4 and 1.8.1 contains a cross-namespace authorization bypass in the custom-backend branch of internal/gatewayapi/route.go. The omitted validateBackendNamespace check allows an HTTPRoute to use an extension-managed custom backendRef to reference a backend resource in anot...

EUVD-2026-78072

Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway. Prior to 1.7.4 and 1.8.1, an HTTPRoute can use an extension-managed custom backendRef to reference a backend resource in another namespace without a matching Gateway API...

CVE-2026-54246 Skipper routesrv-no-auth: All routesrv API Endpoints Lack Authentication

Skipper is an HTTP router and reverse proxy for service composition. Prior to 0.27.13, the routesrv component serves cluster-wide control-plane data without application-layer authentication through /routes, /routes/zone, /swarm/redis/shards, and /swarm/valkey/shards. The handlers registered in...

StatefulSet and ControllerRevision write permissions allow cross-namespace pod creation

CVSS Rating: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N - Medium 5.9 A confused deputy attack exists in the StatefulSet controller that allows a user with namespace-scoped write permissions on StatefulSet and ControllerRevision objects to create a cross-namespace pod. An attacker exploiting thi...

AZL-100073 CVE-2026-81003 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: net/iucv: filter frames in afiucvhsrcv by ingress device afiucvhsrcv selects a socket from iucvsklist by matching four 8-byte name fields in the transport header alone. No check is made against the netdevice the frame arrived on...

CVE-2026-81003 net/iucv: filter frames in afiucv_hs_rcv() by ingress device

In the Linux kernel, the following vulnerability has been resolved: net/iucv: filter frames in afiucvhsrcv by ingress device afiucvhsrcv selects a socket from iucvsklist by matching four 8-byte name fields in the transport header alone. No check is made against the netdevice the frame arrived on...

CVE-2026-81003

CVE-2026-81003 affects the Linux kernel net/iucv subsystem (IBM s390 IUCV/HiperSockets). The function afiucv_hs_rcv() matched incoming frames to sockets using only four 8-byte name fields in the transport header, without verifying the ingress net_device . This allowed frames from any network devi...

CVE-2026-89060

A cross-namespace authorization flaw in multicluster-observability-addon allows a user with permission to modify a managed cluster’s ManagedClusterAddOn configuration to reference ClusterLogForwarder or OpenTelemetryCollector resources outside the permitted namespace. If those resources reference...

CVE-2026-89060 Stolostron/multicluster-observability-addon: cross-namespace secret disclosure in multicluster-observability-addon via unvalidated configuration references

A cross-namespace authorization flaw in multicluster-observability-addon allows a user with permission to modify a managed cluster’s ManagedClusterAddOn configuration to reference ClusterLogForwarder or OpenTelemetryCollector resources outside the permitted namespace. If those resources reference...

CVE-2026-89060 Stolostron/multicluster-observability-addon: cross-namespace secret disclosure in multicluster-observability-addon via unvalidated configuration references

A cross-namespace authorization flaw in multicluster-observability-addon allows a user with permission to modify a managed cluster’s ManagedClusterAddOn configuration to reference ClusterLogForwarder or OpenTelemetryCollector resources outside the permitted namespace. If those resources reference...

CVE-2026-89060

Stolostron multicluster-observability-addon is affected by a cross-namespace secret disclosure flaw. A managed-cluster identity can reference configuration resources outside its designated namespace, allowing an attacker-controlled managed cluster to access sensitive hub Secrets . The CVSS 3.1 sc...

CVE-2026-89060: Incorrect Behavior Order: Authorization Before Parsing and Canonicalization

A cross-namespace authorization flaw in multicluster-observability-addon allows a user with permission to modify a managed cluster’s ManagedClusterAddOn configuration to reference ClusterLogForwarder or OpenTelemetryCollector resources outside the permitted namespace. If those resources reference...

CVE-2026-80354

Authorization bypass through User-Controlled key vulnerability in Apache Camel K. An authorization vulnerability in custom resource resolution allows a tenant to reference secrets by name in the operator namespace, potentially exposing secrets belonging to other tenants or operator components. Th...

SUSE CVE-2026-54523

Kyverno is a policy engine designed for cloud native platform engineering teams. From 1.18.0 until 1.18.2, the NamespacedMutatingPolicy CEL compiler exposes the generator library to matchConditions, allowing a namespace-scoped policy to invoke generator.applynamespace, resources with an arbitrary...

SUSE CVE-2026-65601

Traefik versions 3.7.0 through 3.7.6 contain a namespace confusion vulnerability in the Kubernetes Gateway API provider. When resolving HTTPRoute.spec.rules.backendRefs.filters.extensionRef, Traefik used the backend Service namespace instead of the HTTPRoute namespace. A low-privileged route auth...

SUSE CVE-2026-71325

Traefik is an open-source edge router that makes publishing services a fun and easy experience. Prior to 2.11.54, 3.6.25, and 3.7.10, cross-namespace @kubernetescrd references are not rejected for TraefikService backend references resolved by the service resolver. A tenant confined by RBAC to a...

EUVD-2026-71017

Traefik versions from v3.7.1 fail to enforce crossProviderNamespaces restrictions on the traefik.ingress.kubernetes.io/service.middlewares Service annotation in the Kubernetes Ingress provider. A namespace-limited tenant excluded from the allowlist can attach an operator-owned middleware to its...

CVE-2026-78600

Incomplete Cleanup CWE-459 in Elastic Cloud on Kubernetes ECK can lead to unauthorized access via Privilege Abuse CAPEC-122. Authentication credentials persist after a cross-namespace association has been denied by RBAC enforcement, allowing a low-privileged tenant to retain unauthorized read...

BIT-KYVERNO-2026-54523 Kyverno: NamespacedGeneratingPolicy generator.apply() namespace argument unvalidated -- background controller creates RoleBindings in any namespace including kube-system

Kyverno is a policy engine designed for cloud native platform engineering teams. From 1.18.0 until 1.18.2, the NamespacedMutatingPolicy CEL compiler exposes the generator library to matchConditions, allowing a namespace-scoped policy to invoke generator.applynamespace, resources with an arbitrary...

EUVD-2026-70053

Incomplete Cleanup CWE-459 in Elastic Cloud on Kubernetes ECK can lead to unauthorized access via Privilege Abuse CAPEC-122. Authentication credentials persist after a cross-namespace association has been denied by RBAC enforcement, allowing a low-privileged tenant to retain unauthorized read...