CVE-2026-55225

When the Strimzi cluster operator is deployed with watchAnyNamespace=true or a multi-namespace list, any namespace editor can set Kafka.spec.entityOperator.userOperator.watchedNamespace or topicOperator.watchedNamespace to an arbitrary namespace. The cluster operator then creates a Role granting...

CVE-2026-49824 Fission: Cross-namespace Environment reference via unvalidated EnvironmentRef in Function admission webhook

Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.24.0, the Fission Function admission webhook pkg/webhook/function.go validated that spec.secrets.namespace and spec.configmaps.namespace...

CVE-2026-49824

Fission (Kubernetes-native serverless framework) prior to v1.24.0 allowed a cross-namespace environment reference via the Function admission webhook because spec.environment.namespace was not validated, unlike spec.secrets[].namespace and spec.configmaps[].namespace. The issue affects the Functio...

CVE-2026-49823 Fission: Cross-namespace Package read via unvalidated PackageRef in Function admission webhook

Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.24.0, a Fission Function spec carries three reference types — Secret, ConfigMap, and Package. The first two were namespace-validated by...

CVE-2026-49823 Fission: Cross-namespace Package read via unvalidated PackageRef in Function admission webhook

Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.24.0, a Fission Function spec carries three reference types — Secret, ConfigMap, and Package. The first two were namespace-validated by...

CVE-2026-49822 Fission: Cross-namespace event leakage via KubernetesWatchTrigger allows persistent tenant surveillance

Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.24.0, a low-privilege developer who could create a KubernetesWatchTrigger KWT in their own namespace was able to establish a persistent...

EUVD-2026-36095

Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.24.0, a low-privilege developer who could create a KubernetesWatchTrigger KWT in their own namespace was able to establish a persistent...

CVE-2026-49822

CVE-2026-49822 affects the Fission framework (Kubernetes-native serverless) prior to version 1.24.0. A low-privilege developer who could create a KubernetesWatchTrigger (KWT) in their own namespace could establish a persistent surveillance channel into other namespaces, enabling cross-namespace e...

CVE-2026-49821 Fission: Cross-namespace Environment reference in Package allows build-time command execution and SA token exfiltration

Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.24.0, Fission's buildermgr controller processed Package CRDs without verifying that Package.spec.environment.namespace matched...

CVE-2026-49821

Fission (Kubernetes-native serverless framework) prior to v1.24.0 is affected where the buildermgr controller processed Package CRDs without validating that Package.spec.environment.namespace equals Package.metadata.namespace. This cross-namespace environment reference could enable build-time com...

CVE-2026-42875

External Secrets Operator reads information from a third-party service and automatically injects the values as Kubernetes Secrets. Prior to 2.4.0, Namespaced SecretStore resources that used CAProvider with type ConfigMap could resolve CA material from another namespace when caProvider.namespace w...

CVE-2026-24176

NVIDIA KAI Scheduler contains a vulnerability where an attacker could cause improper authorization through cross-namespace pod references. A successful exploit of this vulnerability might lead to data tampering...

CVE-2026-44424

ShellHub is a centralized SSH gateway. Prior to 0.24.2, GET /api/devices/:uid returns the full device object whenever the caller is authenticated, without verifying that the device belongs to the caller's namespace tenant. Any authenticated user JWT or API Key who knows or can guess a device UID...

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-2026-39884

mcp-server-kubernetes is a Model Context Protocol server for Kubernetes cluster management. Versions 3.4.0 and prior contain an argument injection vulnerability in the portforward tool in src/tools/portforward.ts, where a kubectl command is constructed via string concatenation with user-controlle...

GHSA-RF84-WR5G-M3RP CAPM3 vulnerable to Cross-Namespace resource access

Summary CAPM3 is Metal3's Cluster API CAPI provider for baremetal provisioning in Kubernetes. Multiple cross-namespace access control vulnerabilities in Cluster API Provider Metal3 allow users with permissions to create or modify CAPM3 resources in one namespace to reference, read, or claim...

CAPM3 vulnerable to Cross-Namespace resource access

Summary CAPM3 is Metal3's Cluster API CAPI provider for baremetal provisioning in Kubernetes. Multiple cross-namespace access control vulnerabilities in Cluster API Provider Metal3 allow users with permissions to create or modify CAPM3 resources in one namespace to reference, read, or claim...

PT-2026-47580

Summary CAPM3 is Metal3's Cluster API CAPI provider for baremetal provisioning in Kubernetes. Multiple cross-namespace access control vulnerabilities in Cluster API Provider Metal3 allow users with permissions to create or modify CAPM3 resources in one namespace to reference, read, or claim...

GHSA-V8V8-CM84-M686 OpenBao's cross-namespace lease revocation via legacy sys/revoke path bypasses ACL

Impact OpenBao's namespaces provide multi-tenant separation. A tenant who intentionally leaks lease identifiers can have their lease and underlying credential revoked or renewed by a user in another tenant via the legacy, undocumented sys/revoke and sys/renew endpoints. Patch This will be address...

OpenBao's cross-namespace lease revocation via legacy sys/revoke path bypasses ACL

Impact OpenBao's namespaces provide multi-tenant separation. A tenant who intentionally leaks lease identifiers can have their lease and underlying credential revoked or renewed by a user in another tenant via the legacy, undocumented sys/revoke and sys/renew endpoints. Patch This will be address...