Command Injection

Overview Affected versions of this package are vulnerable to Command Injection via the builder process. An attacker can execute arbitrary commands within the builder pod context by supplying crafted values to the Environment.spec.builder.command field when creating or updating Environment CRDs in...

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-2026-50570 Fission: Incomplete capability denylist in Environment/Function PodSpec validation allows tenant-added CAP_SYS_TIME and cross-tenant node wall-clock corruption

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 /...

Fission builder accepts arbitrary buildcmd strings from Environment.spec.builder.command, allowing the builder pod to invoke arbitrary executables

Summary Before the round-1 security sweep, pkg/builder/builder.go passed Environment.spec.builder.command directly into exec.Command... after a strings.Fields split, with no validation of the executable path or its arguments. A user who could create or update Environment CRDs in a namespace...