Riskcovery

CVE-2026-50565

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

State
Published
Severity
4.9 Medium
Published
Jun 10, 2026
Updated
Jun 10, 2026
Reserved
Jun 4, 2026

Read the record on cve.org

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 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.

Scores

CVSSScoreVectorSource
3.14.9 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:NGitHub_M

Weaknesses

  • CWE-250 Execution with Unnecessary Privileges
  • CWE-269 Improper Privilege Management
  • CWE-538 Insertion of Sensitive Information into Externally-Accessible File or Directory

Affected Products

ProductVersions
fissionfission
  • < 1.24.0Affected

References

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