GO-2026-5852 Fission: Cross-namespace Environment reference via unvalidated EnvironmentRef in Function admission webhook in github.com/fission/fission

Fission: Cross-namespace Environment reference via unvalidated EnvironmentRef in Function admission webhook in github.com/fission/fission...

GO-2026-5846 Fission: Cross-namespace Package read via unvalidated PackageRef in Function admission webhook in github.com/fission/fission

Fission: Cross-namespace Package read via unvalidated PackageRef in Function admission webhook in github.com/fission/fission...

GO-2026-5857 Fission: Environment Runtime.Container and Builder.Container SecurityContext bypass allows privileged pod creation in github.com/fission/fission

Fission: Environment Runtime.Container and Builder.Container SecurityContext bypass allows privileged pod creation in github.com/fission/fission...

GO-2026-5850 Fission builder pods auto-mount the fission-builder ServiceAccount token in the user-supplied builder container in github.com/fission/fission

Fission builder pods auto-mount the fission-builder ServiceAccount token in the user-supplied builder container in github.com/fission/fission...

GO-2026-5858 Fission Container Executor Function PodSpec Injection Leading to Node Escape in github.com/fission/fission

Fission Container Executor Function PodSpec Injection Leading to Node Escape in github.com/fission/fission...

GO-2026-5849 Fission: MessageQueueTrigger scaler manager materializes Secret values into Deployment envvars and accepts arbitrary user PodSpec in github.com/fission/fission

Fission: MessageQueueTrigger scaler manager materializes Secret values into Deployment envvars and accepts arbitrary user PodSpec in github.com/fission/fission...

Fission: Environment Runtime.Container and Builder.Container SecurityContext bypass allows privileged pod creation

Summary A follow-up bypass of the round-4 PodSpec hardening GHSA-gx55-f84r-v3r7, GHSA-wmgg-3p4h-48x7, GHSA-v455-mv2v-5g92. Those advisories validate and sanitize the PodSpec spec.runtime.podSpec / spec.builder.podSpec / function.spec.podSpec, but the Environment CRD also exposes...

EUVD-2026-36102

Fission: Environment Runtime.Container and Builder.Container SecurityContext bypass allows privileged pod creation...

EUVD-2026-36101

Fission builder pods auto-mount the fission-builder ServiceAccount token in the user-supplied builder container...

Fission builder pods auto-mount the fission-builder ServiceAccount token in the user-supplied builder container

Summary Fission builder pods were created with ServiceAccountName: fission-builder and no AutomountServiceAccountToken: false, so the kubelet auto-mounted the service-account token into every container in the pod — including the user-supplied builder image. Details The user controls the builder...

GHSA-8WCJ-MFRC-JX5Q Fission builder pods auto-mount the fission-builder ServiceAccount token in the user-supplied builder container

Summary Fission builder pods were created with ServiceAccountName: fission-builder and no AutomountServiceAccountToken: false, so the kubelet auto-mounted the service-account token into every container in the pod — including the user-supplied builder image. Details The user controls the builder...

EUVD-2026-36100

Fission Environment CRD podspec passthrough enables hostPID/hostNetwork/privileged pods, node escape...

GHSA-GX55-F84R-V3R7 Fission Environment CRD podspec passthrough enables hostPID/hostNetwork/privileged pods, node escape

Summary Fission's Environment CRD exposes spec.runtime.podSpec and spec.builder.podSpec, which are merged into the Kubernetes pod specs for runtime and builder pods. The merge logic propagated hostNetwork, hostPID, hostIPC, container privileged, and serviceAccountName from the user-supplied podsp...

Fission Environment CRD podspec passthrough enables hostPID/hostNetwork/privileged pods, node escape

Summary Fission's Environment CRD exposes spec.runtime.podSpec and spec.builder.podSpec, which are merged into the Kubernetes pod specs for runtime and builder pods. The merge logic propagated hostNetwork, hostPID, hostIPC, container privileged, and serviceAccountName from the user-supplied podsp...

EUVD-2026-36099

Fission Container Executor Function PodSpec Injection Leading to Node Escape...

Fission Container Executor Function PodSpec Injection Leading to Node Escape

Summary Fission's Container Executor path lets a tenant supply Function.spec.podspec directly; the executor merges it into the executor-built podspec and creates a Deployment whose pods run the user's container image. Details Two flaws compounded: 1...

GHSA-V455-MV2V-5G92 Fission Container Executor Function PodSpec Injection Leading to Node Escape

Summary Fission's Container Executor path lets a tenant supply Function.spec.podspec directly; the executor merges it into the executor-built podspec and creates a Deployment whose pods run the user's container image. Details Two flaws compounded: 1...

EUVD-2026-36098

Fission Environment CRD PodSpec Injection Leading to Node Escape and Cluster Takeover...

EUVD-2026-36097

Fission: Cross-namespace Environment reference via unvalidated EnvironmentRef 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...