High · published October 2, 2025
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. Without a configured webhook.bitbucketserver.secret, Argo CD's /api/webhook endpoint crashes when receiving a malformed Bitbucket Server payload (non-array repository.links.clone field). A single unauthenticated request triggers CrashLoopBackOff, and targeting all replicas causes complete API outage. This issue is fixed in versions 2.14.20, 3.2.0-rc2, 3.1.8 and 3.0.19.
| Product | Versions | Fixed in |
|---|---|---|
| argoproj/argo_cd | ≥ 1.2.0, ≤ 1.8.7 | — |
| argoproj/argo_cd | ≥ 2.0.0, < 2.14.20 | 2.14.20 |
| argoproj/argo_cd | ≥ 3.0.0, < 3.0.19 | 3.0.19 |
| argoproj/argo_cd | ≥ 3.1.0, < 3.1.8 | 3.1.8 |
| argoproj/argo_cd | all versions | — |