CVE-2026-50566 — Fission: Environment Runtime.Container and Builder.Container SecurityContext bypass allows privileged pod creation
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 w…
Published: 2026-06-10 · CVSS: 9.9 · CVSS 3.1
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 containers in the Fission function or builder namespace, scheduled under the executor's high-privilege service account — enabling container-sandbox escape, host filesystem and network access, and potential node- and cluster-level compromise. This issue has been patched in version 1.24.0.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7