PT-2026-48506 · Fission · Fission

CVE-2026-49824

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Published

2026-06-10

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Updated

2026-07-30

CVSS v3.1

8.5

High

VectorAV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
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 Function admission webhook in pkg/webhook/function.go fails to validate that the spec.environment.namespace variable matches the function's own namespace, although it correctly performs this check for spec.secrets[].namespace and spec.configmaps[].namespace. This allows for cross-namespace environment references via an unvalidated EnvironmentRef.
Recommendations Update to version 1.24.0.

Exploit

Fix

Incorrect Authorization

Improper Access Control

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Weakness Enumeration

Related Identifiers

CVE-2026-49824
GHSA-CVW6-GFVV-953Q
GO-2026-5852
OPENSUSE-SU-2026:21483-1

Affected Products

Fission