CVE-2026-42183

N/A

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.

CVE Details

CVSS v3.1 ScoreN/A

Published5/9/2026

Last Modified5/9/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-476

References

https://github.com/argoproj/argo-workflows/commit/c4cc17d0c034fa9a9cc01ef1af6c8016c93071d4(security-advisories@github.com)

https://github.com/argoproj/argo-workflows/releases/tag/v4.0.5(security-advisories@github.com)

https://github.com/argoproj/argo-workflows/security/advisories/GHSA-p4gq-3vxj-f4jq(security-advisories@github.com)

IOC Correlations

No correlations recorded

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