{"action":"Upgrade github.com/argoproj/argo-workflows/v4 to 4.0.5 or later.","affected":[{"fixed":"4.0.5","introduced":"4.0.0"}],"component":"github.com/argoproj/argo-workflows/v4","cve_ids":["CVE-2026-42183"],"ecosystem":"Go","epss":0.00377,"exploited":false,"fixed_versions":["4.0.5"],"ghsa_id":"GHSA-p4gq-3vxj-f4jq","id":"tcs_01M5KGN0Y94SQVEJCYJ0JMZZB4","modified_at":"2026-07-02T14:44:23.939425072Z","published_at":"2026-06-25T22:34:34Z","references":["https://osv.dev/vulnerability/GO-2026-5527","https://github.com/argoproj/argo-workflows/security/advisories/GHSA-p4gq-3vxj-f4jq","https://nvd.nist.gov/vuln/detail/CVE-2026-42183","https://github.com/argoproj/argo-workflows/commit/c4cc17d0c034fa9a9cc01ef1af6c8016c93071d4","https://github.com/argoproj/argo-workflows/releases/tag/v4.0.5"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"GO-2026-5527#Go/github.com/argoproj/argo-workflows/v4","url":"https://osv.dev/vulnerability/GO-2026-5527"},{"source":"nvd","source_id":"CVE-2026-42183","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42183"}],"summary":"Argo Affected by SSO RBAC Delegation Nil Pointer Dereference DoS (gatekeeper.go) in github.com/argoproj/argo-workflows"}