cvedb.io
CVE-2026-42183
MEDIUM · CVSS 6.5
EPSS exploitation probability: 0%
Published 2026-05-09T04:16:23.810 · Last modified 2026-06-17T10:47:28.633

Summary

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.

Affected products

argoproj — argo_workflows

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.