{"id":"BIT-argo-workflows-2026-93991","summary":"Argo Workflows 4.1.0 through 4.1.3 Cross-Namespace Disclosure via Negated Selector","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.","aliases":["CVE-2026-93991","GHSA-q65w-j2vp-47c4"],"modified":"2026-09-29T10:10:57.177378961Z","published":"2026-09-29T08:38:46.269Z","database_specific":{"severity":"High","cpes":["cpe:2.3:a:argo_workflows_project:argo_workflows:*:*:*:*:*:kubernetes:*:*"]},"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://nvd.nist.gov/vuln/detail/CVE-2026-93991"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/argo-workflows-4.1.0-through-4.1.3-cross-namespace-disclosure-via-negated-selector"}],"affected":[{"package":{"name":"argo-workflows","ecosystem":"Bitnami","purl":"pkg:bitnami/argo-workflows"},"ranges":[{"type":"SEMVER","events":[{"introduced":"4.1.0"},{"fixed":"4.1.4"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/argo-workflows/BIT-argo-workflows-2026-93991.json"},"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}],"schema_version":"1.9.0"}