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VulnerabilityPublished Updated

CVE-2024-39935: nginx-proxy-manager · OS Command Injection

Affects nginx-proxy-managerSource CVE Database V5

0

Not known to be exploited · CVSS 8.8 High : upgrade to 2.11.3 soon.

Data as of 26 Oct 2026, 11:42 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.8% chance of exploitation in 30 days – higher than 58% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.11.3
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 4 Jul 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade nginxproxymanager/nginx-proxy-manager to 2.11.3.

Affected software

ProductAffectedFixed in
GitHubnginxproxymanager/nginx-proxy-managerpkg:github/nginxproxymanager/nginx-proxy-managerOther threatsAffected
  • <2.11.3
Fixed in
  • 2.11.3

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

To mitigate CVE-2024-39935, organizations should immediately upgrade jc21 NGINX Proxy Manager to version 2.11.3 or later, where the vulnerability has been addressed. If upgrading is not immediately feasible, restrict certificate management privileges to only trusted administrators and enforce strict access controls to limit the number of users who can modify DNS provider configurations. Implement input validation and sanitization controls on DNS provider configuration inputs to prevent injection of malicious commands. Monitor logs for unusual activity related to certificate management and DNS configuration changes. Employ network segmentation to isolate the proxy manager from critical infrastructure and sensitive data stores. Additionally, consider deploying host-based intrusion detection systems (HIDS) to detect suspicious command execution patterns. Regularly audit user privileges and review configuration changes to detect potential abuse. Finally, maintain up-to-date backups and incident response plans to quickly recover from any compromise.

Description

jc21 NGINX Proxy Manager before 2.11.3 allows backend/internal/certificate.js OS command injection by an authenticated user (with certificate management privileges) via untrusted input to the DNS provider configuration. NOTE: this is not part of any NGINX software shipped by F5.

References

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