EUVD-2026-36097

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

GHSA-CVW6-GFVV-953Q 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...

EUVD-2026-36096

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

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...

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-2026-13322

A flaw was found in KubeVirt's downward metrics virtio-serial server. The server reads guest requests using textproto.Reader.ReadLine, which buffers input indefinitely until a newline character is received, with no length limit or read deadline. A user with access to a VM guest that has the...

GHSA-GWXR-7H77-7777 Capsule: Incomplete fix of CVE-2026-30963: singular/plural typo leaves namespaces/finalize unprotected

Summary Capsule v0.13.2 webhook rules contain namespace/finalize singular instead of namespaces/finalize plural. K8s requires plural. The finalize defense from CVE-2026-30963 fix is absent. Details PUT to /api/v1/namespaces//finalize has resource=namespaces plural. The singular rule never matches...

CVE-2026-50570

Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.25.0, Fission added PodSpec safety validation for tenant-facing Environment and Function CRDs ValidatePodSpecSafety /...

CVE-2026-49824

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...

EUVD-2026-36074

Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.25.0, Fission added PodSpec safety validation for tenant-facing Environment and Function CRDs ValidatePodSpecSafety /...

CVE-2026-50570

Fission prior to v1.25.0 allowed tenant-created Function/Environment CRDs to request securityContext.capabilities.add: ["SYS_TIME"] despite a fixed denylist (SYS_ADMIN, NET_ADMIN, SYS_PTRACE, SYS_MODULE, DAC_READ_SEARCH, DAC_OVERRIDE). The validation/merge-layer sanitization did not block CAP_SYS...

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-2026-49823 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

Summary : CVE-2026-49823 affects Fission (Kubernetes-native serverless framework). Before version 1.24.0, the PackageRef.Namespace in a Fission Function spec was not validated by the admission webhook (unlike Secret/ConfigMap). This allowed cross-namespace access via an unvalidated Package refere...

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...

PT-2026-48505

Name of the Vulnerable Software and Affected Versions Fission versions prior to 1.24.0 Description An issue exists in the Fission serverless framework where the admission webhook fails to validate the namespace for the PackageRef.Namespace reference type. While Secret and ConfigMap reference type...

PT-2026-48506

Name of the Vulnerable Software and Affected Versions Fission versions prior to 1.24.0 Description Fission is an open-source, Kubernetes-native serverless framework used for deploying functions and applications on Kubernetes. The Function admission webhook in pkg/webhook/function.go fails to...

CVE-2026-39961

Aiven Operator allows you to provision and manage Aiven Services from your Kubernetes cluster. From 0.31.0 to before 0.37.0, a developer with create permission on ClickhouseUser CRDs in their own namespace can exfiltrate secrets from any other namespace — production database credentials, API keys...

EUVD-2026-20965

Aiven Operator has cross-namespace secret exfiltration via ClickhouseUser connInfoSecretSource...

CVE-2026-39961

CVE-2026-39961 (Aiven Operator) affects Aiven Operator versions 0.31.0–0.36.x. A developer with create permission on ClickhouseUser CRDs in their own namespace can exfiltrate secrets from any namespace. The operator reads the victim’s secret using its ClusterRole (aiven-operator-role) and writes ...