{"id":"CVE-2026-93991","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-93991","summary":"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…","details":"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.","published":"2026-09-19T23:17:10.360","modified":"2026-09-19T23:17:10.360","cvss":{"score":7.7,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/argoproj/argo-workflows/commit/a40972386c097ddf816d2e60e13f058bedca53d9","label":"argoproj/argo-workflows@a409723"},"references":[{"type":"WEB","url":"https://github.com/argoproj/argo-workflows"},{"type":"WEB","url":"https://github.com/argoproj/argo-workflows/commit/a40972386c097ddf816d2e60e13f058bedca53d9"},{"type":"WEB","url":"https://github.com/argoproj/argo-workflows/releases/tag/v4.1.4"},{"type":"WEB","url":"https://github.com/argoproj/argo-workflows/security/advisories/GHSA-q65w-j2vp-47c4"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/argo-workflows-4.1.0-through-4.1.3-cross-namespace-disclosure-via-negated-selector"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-19T23:17:10.360"}}