Vulnerability Description
Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. For versions 2.9.0-rc1 through 2.14.19, 3.0.0-rc1 through 3.2.0-rc1, 3.1.6 and 3.0.17, when the webhook.azuredevops.username and webhook.azuredevops.password are not set in the default configuration, the /api/webhook endpoint crashes the entire argocd-server process when it receives an Azure DevOps Push event whose JSON array resource.refUpdates is empty. The slice index [0] is accessed without a length check, causing an index-out-of-range panic. A single unauthenticated HTTP POST is enough to kill the process. This issue is resolved in versions 2.14.20, 3.2.0-rc2, 3.1.8 and 3.0.19.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Argoproj | Argo Cd | >= 2.9.0, < 2.14.20 |
Related Weaknesses (CWE)
References
- https://github.com/argoproj/argo-cd/commit/1a023f1ca7fe4ec942b4b6696804988d5a632Patch
- https://github.com/argoproj/argo-cd/security/advisories/GHSA-gpx4-37g2-c8pvExploitVendor Advisory
- https://github.com/argoproj/argo-cd/security/advisories/GHSA-gpx4-37g2-c8pvExploitVendor Advisory
FAQ
What is CVE-2025-59538?
CVE-2025-59538 is a vulnerability with a CVSS score of 7.5 (HIGH). Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. For versions 2.9.0-rc1 through 2.14.19, 3.0.0-rc1 through 3.2.0-rc1, 3.1.6 and 3.0.17, when the webhook.azuredevops.username a...
How severe is CVE-2025-59538?
CVE-2025-59538 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-59538?
Check the references section above for vendor advisories and patch information. Affected products include: Argoproj Argo Cd.