Vulnerability in Argoproj Argo-Cd
CVE-2025-59531
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.006 (47.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 47.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Argoproj Argo-Cd — versions >= 1.2.0, <= 1.8.7, >= 2.0.0-rc1, < 2.14.20, >= 3.2.0-rc1, < 3.2.0-rc2
- Argoproj Argo Cd — versions 3.2.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/argoproj/argo-cd/security/advisories/GHSA-f9gq-prrc-hrhc (Exploit, Mitigation, Vendor Advisory)
- github.com/argoproj/argo-cd/commit/5c466a4e39802e059e75c0008ae7b7b8e842538f (Patch)
Frequently asked questions
- What is CVE-2025-59531?
- CVE-2025-59531 is a high-severity vulnerability in Argoproj Argo-Cd, classified under CWE-703. CVSS score: 7.5/10. Published 2025-10-01.
- How severe is CVE-2025-59531?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2025-59531 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.