CVE-2026-50563 – Fission Container Executor Function PodSpec Injection Leading to Node Escape

​CVE ID :CVE-2026-50563

Published : June 10, 2026, 6:17 p.m. | 1 hour ago

Description :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 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. This issue has been patched in version 1.24.0.

Severity: 9.9 | CRITICAL

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