Vulnerability Description
Argo Workflows versions 4.1.0 through 4.1.3 contain an authorization bypass vulnerability in ListArchivedWorkflows that fails to apply cluster-scoped access review when the metadata.namespace field selector uses the NotEquals operator. Attackers with namespace-scoped list permissions can use a negated namespace field selector to retrieve archived workflows from all other namespaces, exposing spec arguments, parameter values, and annotations.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/argoproj/argo-workflows
- https://github.com/argoproj/argo-workflows/commit/a40972386c097ddf816d2e60e13f05
- https://github.com/argoproj/argo-workflows/releases/tag/v4.1.4
- https://github.com/argoproj/argo-workflows/security/advisories/GHSA-q65w-j2vp-47
- https://www.vulncheck.com/advisories/argo-workflows-4.1.0-through-4.1.3-cross-na
FAQ
What is CVE-2026-93991?
CVE-2026-93991 is a vulnerability with a CVSS score of 7.7 (HIGH). Argo Workflows versions 4.1.0 through 4.1.3 contain an authorization bypass vulnerability in ListArchivedWorkflows that fails to apply cluster-scoped access review when the metadata.namespace field se...
How severe is CVE-2026-93991?
CVE-2026-93991 has been rated HIGH with a CVSS base score of 7.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-93991?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.