RCE in Nginxproxymanager Nginx-proxy-manager
CVE-2026-40519
Nginx Proxy Manager versions 2.9.14 through 2.15.1, fixed in commit a5db5ed, contain an authenticated remote code execution vulnerability via OS command injection in the setupCertbotPlugins() function in backend/setup.js, allowing attacker…
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.009 (56.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Nginxproxymanager Nginx-proxy-manager — versions 2.9.14, a5db5ed156355e3088e7d1ceb0533d4bae922def
Weakness classification (CWE)
Public proof-of-concept exploits
References
- disclosure@vulncheck.com (patch)
- disclosure@vulncheck.com (issue-tracking)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-40519?
- CVE-2026-40519 is a high-severity vulnerability in Nginxproxymanager Nginx-proxy-manager, classified under OS Command Injection. CVSS score: 7.5/10. Published 2026-06-08.
- How severe is CVE-2026-40519?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2026-40519 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.