CVE-2026-50545

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, the Environment.spec.runtime.podSpec / spec.builder.podSpec passthrough lacked validation, and MergePodSpec propagated dangerous fields into the generated pods. This issue has been patched in version 1.24.0.

SeverityCritical

CVSS9.9

Exploit probability—

ProductGithub.com/fission/fission

PublishedJun 10, 2026

First seenJun 10, 2026

Weakness typeCWE-269Improper privilege management CWE-284Improper access control CWE-693CWE-693

How to fix

Update

github.com/fission/fission1.24.0 or later

Affected products

Product	Affected versions	Fixed in
github.com/fission/fissionGo	v < 1.24.0	1.24.0

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