Security Advisory

CVE-2026-42183

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-05-09 03:44:10

Last updated 2026-05-13 17:46:04

Assigner GitHub_M

CVSS score 2.3

State PUBLISHED

Description

Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. From version 4.0.0 to before version 4.0.5, a nil pointer dereference in server/auth/gatekeeper.go rbacAuthorization() causes a panic (denial of service) for SSO users whose claims match a namespace-level RBAC rule but not an SSO-namespace rule, when SSO_DELEGATE_RBAC_TO_NAMESPACE=true. This issue has been patched in version 4.0.5.

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