Fission: Cross-namespace Environment reference via unvalidated EnvironmentRef in Function admission webhook

Summary The Fission Function admission webhook pkg/webhook/function.go validated that spec.secrets.namespace and spec.configmaps.namespace equalled the function's own namespace but performed no equivalent check on spec.environment.namespace. Details An attacker with permission to create Functions...

Fission: Cross-namespace Package read via unvalidated PackageRef in Function admission webhook

Summary A Fission Function spec carries three reference types — Secret, ConfigMap, and Package. The first two were namespace-validated by the admission webhook; PackageRef.Namespace was not. Details A tenant with functions.fission.io/create in their own namespace could set...

GHSA-3R8V-2XMJ-5C39 Fission: Cross-namespace Package read via unvalidated PackageRef in Function admission webhook

Summary A Fission Function spec carries three reference types — Secret, ConfigMap, and Package. The first two were namespace-validated by the admission webhook; PackageRef.Namespace was not. Details A tenant with functions.fission.io/create in their own namespace could set...

EUVD-2026-36095

Fission: Cross-namespace event leakage via KubernetesWatchTrigger allows persistent tenant surveillance...

GHSA-GC3J-79F2-7VVW Fission: Cross-namespace event leakage via KubernetesWatchTrigger allows persistent tenant surveillance

Summary A low-privilege developer who could create a KubernetesWatchTrigger KWT in their own namespace was able to establish a persistent surveillance channel over any other namespace. Details Two independent flaws compounded: 1. pkg/kubewatcher/kubewatcher.go::createKubernetesWatch used...

Fission: Cross-namespace event leakage via KubernetesWatchTrigger allows persistent tenant surveillance

Summary A low-privilege developer who could create a KubernetesWatchTrigger KWT in their own namespace was able to establish a persistent surveillance channel over any other namespace. Details Two independent flaws compounded: 1. pkg/kubewatcher/kubewatcher.go::createKubernetesWatch used...

Fission: Cross-namespace Environment reference in Package allows build-time command execution and SA token exfiltration

Summary Fission's buildermgr controller processed Package CRDs without verifying that Package.spec.environment.namespace matched Package.metadata.namespace. Details An attacker with packages.fission.io/create in their own namespace could set spec.environment.namespace to any other tenant's...

GHSA-VJHC-CF4P-72Q4 Fission: Cross-namespace Environment reference in Package allows build-time command execution and SA token exfiltration

Summary Fission's buildermgr controller processed Package CRDs without verifying that Package.spec.environment.namespace matched Package.metadata.namespace. Details An attacker with packages.fission.io/create in their own namespace could set spec.environment.namespace to any other tenant's...

CVE-2026-13434

A flaw was found in KubeVirt's network annotation generator. When a tenant creates a VirtualMachineInstance with a Multus network configuration, the supplied networkName value is written verbatim into the launcher pod's v1.multus-cni.io/default-network annotation without format validation or...

CVE-2026-13434

CVE-2026-13434 affects KubeVirt’s network annotation generator used when provisioning VirtualMachineInstance with Multus networks. The flaw writes the supplied networkName verbatim into the v1.multus-cni.io/default-network annotation without format validation or sanitization, with only an empty-s...

CVE-2026-13434 Virt-controller-rhel9: kubevirt: kubevirt: multus default-network annotation injection via unvalidated tenant networkname when externalnetresourceinjection is enabled

A flaw was found in KubeVirt's network annotation generator. When a tenant creates a VirtualMachineInstance with a Multus network configuration, the supplied networkName value is written verbatim into the launcher pod's v1.multus-cni.io/default-network annotation without format validation or...

EUVD-2026-39796

A flaw was found in KubeVirt's network annotation generator. When a tenant creates a VirtualMachineInstance with a Multus network configuration, the supplied networkName value is written verbatim into the launcher pod's v1.multus-cni.io/default-network annotation without format validation or...

CVE-2026-13434

A flaw was found in KubeVirt's network annotation generator. When a tenant creates a VirtualMachineInstance with a Multus network configuration, the supplied networkName value is written verbatim into the launcher pod's v1.multus-cni.io/default-network annotation without format validation or...

PT-2026-52848

Name of the Vulnerable Software and Affected Versions KubeVirt versions 1.8.0 and later Description A flaw exists in the network annotation generator. When a tenant creates a VirtualMachineInstance with a Multus network configuration, the networkName value is written directly into the launcher...

GO-2026-5760 Traefik Kubernetes CRD allows unauthorized cross-namespace middleware binding in github.com/traefik/traefik

Traefik Kubernetes CRD allows unauthorized cross-namespace middleware binding in github.com/traefik/traefik...

GO-2026-5657 OpenBao's cross-namespace lease revocation via legacy sys/revoke path bypasses ACL in github.com/openbao/openbao

OpenBao's cross-namespace lease revocation via legacy sys/revoke path bypasses ACL in github.com/openbao/openbao. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. If this is causing false-positive reports...

GO-2026-5615 CAPM3 vulnerable to Cross-Namespace resource access in github.com/metal3-io/cluster-api-provider-metal3

CAPM3 vulnerable to Cross-Namespace resource access in github.com/metal3-io/cluster-api-provider-metal3...

GO-2026-5621 Kyverno has SSRF via CEL http.Get/http.Post in NamespacedValidatingPolicy allows cross-namespace data access in github.com/kyverno/kyverno

Kyverno has SSRF via CEL http.Get/http.Post in NamespacedValidatingPolicy allows cross-namespace data access in github.com/kyverno/kyverno...

GO-2026-5526 OpenBao's Token Store Allows Cross-Namespace Renewal, Revocation in github.com/openbao/openbao

OpenBao's Token Store Allows Cross-Namespace Renewal, Revocation in github.com/openbao/openbao...

GO-2026-5485 Kong Ingress Controller for Kubernetes (KIC): Cross-namespace TLS Secret Exfiltration in Gateways with GatewayClass missing `konghq.com/gatewayclass-unmanaged: 'true'` annotation in github.com/kong/kubernetes-ingress-controller

Kong Ingress Controller for Kubernetes KIC: Cross-namespace TLS Secret Exfiltration in Gateways with GatewayClass missing konghq.com/gatewayclass-unmanaged: 'true' annotation in github.com/kong/kubernetes-ingress-controller...