CVE-2024-40634
Argo CD Unauthenticated Denial of Service (DoS) Vulnerability via /api/webhook Endpoint
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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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory 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
References (4)
SSVC — Action Prioritization
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Quick Info
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