High severity7.7NVD Advisory· Published Sep 19, 2026
CVE-2026-93991
CVE-2026-93991
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.
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Affected products
2- Range: 4.1.0 - 4.1.3
- Range: 4.1.0 - 4.1.3
Patches
Vulnerability mechanics
References
4- github.com/argoproj/argo-workflows/commit/a40972386c097ddf816d2e60e13f058bedca53d9nvd
- github.com/argoproj/argo-workflows/releases/tag/v4.1.4nvd
- github.com/argoproj/argo-workflows/security/advisories/GHSA-q65w-j2vp-47c4nvd
- www.vulncheck.com/advisories/argo-workflows-4.1.0-through-4.1.3-cross-namespace-disclosure-via-negated-selectornvd
News mentions
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