{"cve":"CVE-2024-40634","nvd":{"published":"2024-07-22T18:15:03.770","modified":"2026-06-17T07:46:12.693","status":"Analyzed","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-400"],"references":["https://github.com/argoproj/argo-cd/commit/46c0c0b64deaab1ece70cb701030b76668ad0cdc","https://github.com/argoproj/argo-cd/commit/540e3a57b90eb3655db54793332fac86bcc38b36","https://github.com/argoproj/argo-cd/commit/d881ee78949e23160a0b280bb159e4d3d625a4df","https://github.com/argoproj/argo-cd/security/advisories/GHSA-jmvp-698c-4x3w","https://github.com/argoproj/argo-cd/commit/46c0c0b64deaab1ece70cb701030b76668ad0cdc"],"products":["argoproj:argo_cd"],"source":"nvd","synced_at":"2026-10-19T21:52:42.518321223+00:00"},"epss":{"cve":"CVE-2024-40634","score":0.01392,"percentile":0.72369,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-jmvp-698c-4x3w","url":"https://osv.dev/vulnerability/GHSA-jmvp-698c-4x3w","summary":"Argo CD Unauthenticated Denial of Service (DoS) Vulnerability via /api/webhook Endpoint","modified":"2026-09-10T03:49:18.734647473Z","packages":[{"ecosystem":"Go","name":"github.com/argoproj/argo-cd","purl":"pkg:golang/github.com/argoproj/argo-cd","ranges":[">=1.0.0 <=1.8.7"],"fixed":[]},{"ecosystem":"Go","name":"github.com/argoproj/argo-cd/v2","purl":"pkg:golang/github.com/argoproj/argo-cd/v2","ranges":["<2.9.20"],"fixed":["2.9.20"]},{"ecosystem":"Go","name":"github.com/argoproj/argo-cd/v2","purl":"pkg:golang/github.com/argoproj/argo-cd/v2","ranges":[">=2.10.0 <2.10.15"],"fixed":["2.10.15"]},{"ecosystem":"Go","name":"github.com/argoproj/argo-cd/v2","purl":"pkg:golang/github.com/argoproj/argo-cd/v2","ranges":[">=2.11.0 <2.11.6"],"fixed":["2.11.6"]}]},{"id":"GO-2024-3002","url":"https://osv.dev/vulnerability/GO-2024-3002","summary":"Argo CD Unauthenticated Denial of Service (DoS) Vulnerability via /api/webhook Endpoint in github.com/argoproj/argo-cd","modified":"2026-02-04T04:32:31.368262Z","packages":[{"ecosystem":"Go","name":"github.com/argoproj/argo-cd","purl":"pkg:golang/github.com/argoproj/argo-cd","ranges":[">=1.0.0"],"fixed":[]},{"ecosystem":"Go","name":"github.com/argoproj/argo-cd/v2","purl":"pkg:golang/github.com/argoproj/argo-cd/v2","ranges":["<2.9.20",">=2.10.0 <2.10.15",">=2.11.0 <2.11.6"],"fixed":["2.9.20","2.10.15","2.11.6"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}