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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.

PUBLISHED Reserved 2026-06-04 | Published 2026-06-10 | Updated 2026-06-10 | Assigner GitHub_M




MEDIUM: 4.9CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Problem types

CWE-250: Execution with Unnecessary Privileges

CWE-269: Improper Privilege Management

CWE-538: Insertion of Sensitive Information into Externally-Accessible File or Directory

Product status

< 1.24.0
affected

References

github.com/...ission/security/advisories/GHSA-8wcj-mfrc-jx5q

github.com/fission/fission/pull/3390

github.com/fission/fission/releases/tag/v1.24.0

cve.org (CVE-2026-50565)

nvd.nist.gov (CVE-2026-50565)

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