CVE-2025-59531: Argoproj Argo Cd

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

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.

Affected products

• Argoproj Argo Cd: from 1.2.0, up to and including 1.8.7; from 2.0.0, before 2.14.20 (fixed in 2.14.20); from 3.0.0, before 3.0.19 (fixed in 3.0.19); from 3.1.0, before 3.1.8 (fixed in 3.1.8); version 3.2.0 only

Published 2025-10-01. Last modified 2026-06-17.