CVE-2026-50565CWE-250CWE-269CWE-538
Fission builder pods auto-mount the fission-builder ServiceAccount token in the user-supplied builder container
Medium · published June 10, 2026
What it is
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 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. This issue has been patched in version 1.24.0.
The record
Technical detail
- CVSS v3.1
- 4.9 · MEDIUM
- Vector
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
- CVSS v4.0
- Not supplied
- EPSS
- 0.00444 · 37.6th percentile
- Weaknesses
- CWE-250 · Execution with Unnecessary Privileges; CWE-269 · Improper Privilege Management; CWE-538 · Insertion of Sensitive Information into Externally-Accessible File or Directory
- Published
- 2026-06-10T17:28Z
EPSS history
Timeline