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-2026-49824 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-2026-49821 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...