CVE-2025-59537

argo-cd is vulnerable to unauthenticated DoS attack via malformed Gogs webhook payload

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. Versions 1.2.0 through 1.8.7, 2.0.0-rc1 through 2.14.19, 3.0.0-rc1 through 3.2.0-rc1, 3.1.7 and 3.0.18 are vulnerable to malicious API requests which can crash the API server and cause denial of service to legitimate clients. With the default configuration, no webhook.gogs.secret set, Argo CD’s /api/webhook endpoint will crash the entire argocd-server process when it receives a Gogs push event whose JSON field commits[].repo is not set or is null. This issue is fixed in versions 2.14.20, 3.2.0-rc2, 3.1.8 and 3.0.19.

Affected

argoproj · argo-cd

CVSS v3.1 GITHUB

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.60% chance of exploitation in the next 30 days, 48th percentile

Published

2025-10-01

Updated

2025-10-02

Proof-of-concept exploits (1)

• advisories/GHSA-wp4p-9pxh-cgx2

Security advisories

• argoproj/argo-cd/security/advisories/GHSA-wp4p-9pxh-cgx2
• argoproj/argo-cd/commit/761fc27068d2d4cd24e1f784eb2a9033b5ee7f43

References

• CVE Record
• NVD entry