Vulnerability · Published Oct 1, 2025 · Assigned by GitHub_M
CVE-2025-59537argo-cd is vulnerable to unauthenticated DoS attack via malformed Gogs webhook payload
High 7.5
In plain English
A high-severity improper input validation in argo-cd from argoproj. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/argoproj/argo-cd | no fix listed | GO-2025-3996 |
| Go | github.com/argoproj/argo-cd | no fix listed | GHSA-wp4p-9pxh-cgx2 |
| Go | github.com/argoproj/argo-cd/v2 | 2.14.20 | GHSA-wp4p-9pxh-cgx2 |
| Go | github.com/argoproj/argo-cd/v2 | 2.14.20 | GO-2025-3996 |
| Go | github.com/argoproj/argo-cd/v3 | 3.0.19, 3.1.8, 3.2.0-rc2 | GO-2025-3996 |
| Go | github.com/argoproj/argo-cd/v3 | 3.2.0-rc2 | GHSA-wp4p-9pxh-cgx2 |
| Go | github.com/argoproj/argo-cd/v3 | 3.1.8 | GHSA-wp4p-9pxh-cgx2 |
| Go | github.com/argoproj/argo-cd/v3 | 3.0.19 | GHSA-wp4p-9pxh-cgx2 |
Affected products (as reported)
Weakness: CWE-20, CWE-476 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H