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OpenAdvisories
Critical · 9.9 CVE-2026-50566 EUVD-2026-36102GHSA-m63v-2g9w-2w6vGO-2026-5857

Fission: Environment Runtime.Container and Builder.Container SecurityContext bypass allows privileged pod creation

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, a tenant with environments.fission.io create/update RBAC can run privileged / allowPrivilegeEscalation / dangerous-capability containers in the Fission function or builder namespace, scheduled under the executor's high-privilege service account — enabling container-sandbox escape, host filesystem and network access, and potential node- and cluster-level compromise. 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-m63v-2g9w-2w6v

Advisories 1

References