Argo CD Unauthenticated Denial of Service (DoS) Vulnerability via /api/webhook Endpoint
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 2.9.20, 2.10.15, 2.11.6
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: poc
- Automatable: yes
- Technical impact: partial
Summary
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: poc · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- argoproj argo-cd
From 1.0.0 · fixed in 2.9.20; From 2.10.0 · fixed in 2.10.15; From 2.11.0 · fixed in 2.11.6
- github.com/argoproj/argo-cdGo
From 1.0.0 · through 1.8.7
- github.com/argoproj/argo-cd/v2Go
fixed in 2.9.20
- github.com/argoproj/argo-cd/v2Go
From 2.10.0 · fixed in 2.10.15
- github.com/argoproj/argo-cd/v2Go
From 2.11.0 · fixed in 2.11.6
- github.com/argoproj/argo-cdGo
From 1.0.0
- github.com/argoproj/argo-cd/v2Go
fixed in 2.9.20; From 2.10.0 · fixed in 2.10.15; From 2.11.0 · fixed in 2.11.6