EUVD-2026-36102

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

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-2026-36101

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

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...

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-2026-36099

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

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...

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...

EUVD-2026-36095

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

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...

EUVD-2026-36094

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

Improper Privilege Management

Overview Affected versions of this package are vulnerable to Improper Privilege Management in the ValidatePodSpecSafety and ValidateContainerSafety processes. An attacker can gain elevated privileges and modify the system clock across tenant boundaries by adding CAPSYSTIME to the...

Improper Privilege Management

Overview Affected versions of this package are vulnerable to Improper Privilege Management in the ValidatePodSpecSafety and ValidateContainerSafety processes. An attacker can gain elevated privileges and modify the system clock across tenant boundaries by adding CAPSYSTIME to the...

CVE-2026-50567

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, Unarchive in pkg/utils/zip.go joined each archive entry name with the destination directory via filepath.Join and wrote the result...

CVE-2026-50569

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, HTTPTriggerSpec.Validate validated Methods, FunctionReference, Host, IngressConfig, and CorsConfig, but silently skipped RelativeU...

CVE-2026-50566

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 tenant with environments.fission.io create/update RBAC can run privileged / allowPrivilegeEscalation / dangerous-capability...

CVE-2026-50568

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, SanitizeFilePath in pkg/utils/utils.go validated that a path stayed under a safe directory by calling strings.HasPrefixpath,...