PT-2026-48508 · Fission · Fission

CVE-2026-50563

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Published

2026-06-10

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Updated

2026-07-30

CVSS v3.1

9.9

Critical

VectorAV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Fission versions prior to 1.24.0
Description Fission is an open-source, Kubernetes-native serverless framework used for deploying functions and applications on Kubernetes. The Container Executor path allows a tenant to directly supply Function.spec.podspec, which the executor then merges into the executor-built podspec to create a Deployment. This process can lead to podspec injection, potentially resulting in a node escape.
Recommendations Update to version 1.24.0.

Exploit

Fix

LPE

Improper Privilege Management

Improper Access Control

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Weakness Enumeration

Related Identifiers

CVE-2026-50563
GHSA-V455-MV2V-5G92
GO-2026-5858
OPENSUSE-SU-2026:21483-1

Affected Products

Fission