CVE-2026-50565 Details
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.
A vulnerability exists in Fission builder pods prior to version 1.24.0, where the service account token for the 'fission-builder' service account was automatically mounted into user-supplied builder containers. This allowed any code running in those containers to access sensitive information, as the 'fission-builder' service account has permissions to read all secrets and config maps in the builder namespace. The issue has been fixed in Fission version 1.24.0.
Users can upgrade to Fission version 1.24.0 to address this vulnerability. Instructions for upgrading are available in the Fission installation guide.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jun 10, 2026CISA-ADP
Assessed Jun 10, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/fission/fission/pull/3390 | [email protected] | Source CodeVendor |
| https://github.com/fission/fission/releases/tag/v1.24.0 | [email protected] | Release NotesVendor |
| https://github.com/fission/fission/security/advisories/GHSA-8wcj-mfrc-jx5q | [email protected] | AdvisoryRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-250 | Execution with Unnecessary Privileges | [email protected] |
| CWE-269 | Improper Privilege Management | [email protected] |
| CWE-538 | Insertion of Sensitive Information into Externally-Accessible File or Directory | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Fission | <= 1.23.0 (semver) |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 10, 2026 | New CVE Received | [email protected] |