{"id":"CVE-2024-40634","aliases":["BIT-argo-cd-2024-40634","GHSA-jmvp-698c-4x3w","GO-2024-3002"],"url":"https://o3.security/vulnerability/CVE-2024-40634","summary":"Argo CD Unauthenticated Denial of Service (DoS) Vulnerability via /api/webhook Endpoint","details":"Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. This report details a security vulnerability in Argo CD, where an unauthenticated attacker can send a specially crafted large JSON payload to the /api/webhook endpoint, causing excessive memory allocation that leads to service disruption by triggering an Out Of Memory (OOM) kill. The issue poses a high risk to the availability of Argo CD deployments. This vulnerability is fixed in 2.11.6, 2.10.15, and 2.9.20.\n","published":"2024-07-22T17:22:55.732Z","modified":"2026-08-08T03:48:04.808706738Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Go","name":"github.com/argoproj/argo-cd","fixedVersion":null},{"ecosystem":"Go","name":"github.com/argoproj/argo-cd/v2","fixedVersion":"2.9.20"},{"ecosystem":"Go","name":"github.com/argoproj/argo-cd/v2","fixedVersion":"2.10.15"},{"ecosystem":"Go","name":"github.com/argoproj/argo-cd/v2","fixedVersion":"2.11.6"}],"fix":{"url":"https://github.com/argoproj/argo-cd/commit/46c0c0b64deaab1ece70cb701030b76668ad0cdc","label":"argoproj/argo-cd@46c0c0b"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/40xxx/CVE-2024-40634.json"},{"type":"ADVISORY","url":"https://github.com/argoproj/argo-cd/security/advisories/GHSA-jmvp-698c-4x3w"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-40634"},{"type":"FIX","url":"https://github.com/argoproj/argo-cd/commit/46c0c0b64deaab1ece70cb701030b76668ad0cdc"},{"type":"FIX","url":"https://github.com/argoproj/argo-cd/commit/540e3a57b90eb3655db54793332fac86bcc38b36"},{"type":"FIX","url":"https://github.com/argoproj/argo-cd/commit/d881ee78949e23160a0b280bb159e4d3d625a4df"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-08T03:48:04.808706738Z"}}