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OpenAdvisories
Critical · 9.9 CVE-2026-50545 EUVD-2026-36098GHSA-wmgg-3p4h-48x7GO-2026-5860

Fission Environment CRD PodSpec Injection Leading to Node Escape and Cluster Takeover

Published Jun 10, 2026 · Updated Jun 12, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
fission fission < 1.24.0 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
openSUSE Leap 16.0 govulncheck-vulndb 0.0.20260723T184607-160000.1.1 openSUSE-SU-2026:21483-1

Affected packages

EcosystemPackageAffectedFixedRecord
Go github.com/fission/fission < 1.24.0 1.24.0 GHSA-wmgg-3p4h-48x7

Advisories 1

References