Argo CD Unauthenticated Denial of Service (DoS) Vulnerability via /api/webhook Endpoint
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.
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2024-40634US | high7.5 | — | ||
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 spec… | ||||
references
External citations — patches, advisories, analysis.
- https://github.com/argoproj/argo-cd/commit/46c0c0b64deaab1ece70cb701030b76668ad0cdcFIX
- https://github.com/argoproj/argo-cd/commit/540e3a57b90eb3655db54793332fac86bcc38b36FIX
- https://github.com/argoproj/argo-cd/commit/d881ee78949e23160a0b280bb159e4d3d625a4dfFIX
- https://github.com/argoproj/argo-cd/security/advisories/GHSA-jmvp-698c-4x3wADVISORY
- https://nvd.nist.gov/vuln/detail/CVE-2024-40634WEB
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