{"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-2026-40886"],"ecosystem":"Go","epss":0.00377,"exploited":false,"fixed_versions":["4.0.5"],"ghsa_id":"GHSA-5jv8-h7qh-rf5p","id":"tcs_01M5KEYF0BRP39N4491QVYT9RQ","modified_at":"2026-09-10T03:50:43.097526471Z","published_at":"2026-04-23T21:39:21Z","references":["https://osv.dev/vulnerability/GHSA-5jv8-h7qh-rf5p","https://github.com/argoproj/argo-workflows/security/advisories/GHSA-5jv8-h7qh-rf5p","https://nvd.nist.gov/vuln/detail/CVE-2026-40886","https://github.com/argoproj/argo-workflows"],"severity":{"label":"high","score":7.7},"sources":[{"source":"osv","source_id":"GHSA-5jv8-h7qh-rf5p","url":"https://osv.dev/vulnerability/GHSA-5jv8-h7qh-rf5p"}],"summary":"Argo Workflows: Unchecked annotation parsing in pod informer crashes Argo Workflows Controller"}