CVE-2026-50565 | Fission is an open-source, Kubernetes-native serverless fram… | CVSS 4.9 MEDIUM

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.

Metadata

CVE ID: CVE-2026-50565
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-06-04 21:34 UTC
Published: 2026-06-10 17:28 UTC
Last updated: 2026-06-10 18:42 UTC
Primary CWE: CWE-250
CWE-250: Execution with Unnecessary Privileges
Vendor / Product: fission / fission
Sources: cve.org · NVD

Severity & Metrics

4.9 MEDIUM CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: none
Automatable: no
Tech. Impact: partial

Affected products (1)

Vendor	Product	Platform	Versions
fission	fission	—	< 1.24.0

Weakness (CWE)

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

CVSS scores (1)

Score	Severity	Version	Source	Vector
4.9	MEDIUM	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

References (3)

https://github.com/fission/fission/security/advisories/GHSA-8wcj-mfrc-jx5q https://github.com/fission/fission/security/advisories/GHSA-8wcj-mfrc-jx5q
https://github.com/fission/fission/pull/3390 https://github.com/fission/fission/pull/3390
https://github.com/fission/fission/releases/tag/v1.24.0 https://github.com/fission/fission/releases/tag/v1.24.0