NULL pointer dereference in Argoproj Argo-Cd
CVE-2025-59537
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.006 (46.6th percentile) — read the EPSS interpretation.
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.
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
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-59537?
- CVE-2025-59537 is a high-severity vulnerability in Argoproj Argo-Cd, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2025-10-01.
- How severe is CVE-2025-59537?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2025-59537 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.