CVE-2026-50563 | Fission is an open-source, Kubernetes-native serverless fram… | CVSS 9.9 CRITICAL

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's Container Executor path lets a tenant supply Function.spec.podspec directly; the executor merges it into the executor-built podspec and creates a Deployment whose pods run the user's container image. This issue has been patched in version 1.24.0.

Metadata

CVE ID: CVE-2026-50563
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-06-04 21:34 UTC
Published: 2026-06-10 17:27 UTC
Last updated: 2026-06-12 03:55 UTC
Primary CWE: CWE-269
CWE-269: Improper Privilege Management
Vendor / Product: fission / fission
Sources: cve.org · NVD

Severity & Metrics

9.9 CRITICAL CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: none
Automatable: no
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
fission	fission	—	< 1.24.0

Weakness (CWE)

CWE	Source	Description
CWE-269	cna	CWE-269: Improper Privilege Management
CWE-284	cna	CWE-284: Improper Access Control

CVSS scores (1)

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

References (3)

https://github.com/fission/fission/security/advisories/GHSA-v455-mv2v-5g92 https://github.com/fission/fission/security/advisories/GHSA-v455-mv2v-5g92
https://github.com/fission/fission/pull/3391 https://github.com/fission/fission/pull/3391
https://github.com/fission/fission/releases/tag/v1.24.0 https://github.com/fission/fission/releases/tag/v1.24.0