---
id: "CVE-2026-119364"
kind: "vulnerability"
aliases: ["CVE-2026-119364"]
title: "ProFTPD: symlink tricks let authenticated FTP users overwrite write-protected files"
severity: "medium"
cvss: 6.0
epss: null
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["ftp", "proftpd", "runtime", "self-hosted"]
not_affected_if: ["mod_copy-disabled", "no-ftp-accounts"]
published_at: "2026-10-30T12:16:35+00:00"
first_seen_at: "2026-10-30T12:30:23+00:00"
updated_at: "2026-10-30T12:32:52+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-119364", "first_seen_at": "2026-10-30T12:30:23+00:00"}]
---

# ProFTPD: symlink tricks let authenticated FTP users overwrite write-protected files

ProFTPD's mod_copy module follows symbolic links, so a logged-in FTP user can bypass Limit WRITE rules. An attacker can overwrite files in locations that should be write-denied.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Run `proftpd -v` to get the installed version and compare it with the affected ranges.
- Check whether mod_copy is loaded and whether SITE COPY or SITE CPTO is enabled in the proftpd configuration.
- Review Limit WRITE rules in the proftpd configuration for write-denied directories.

## Fix

- ProFTPD through 1.3.9e and 1.3.10rc1 through 1.3.10rc4 are affected; the sources do not name a fixed version.

## Timeline

- 2026-10-30T12:30:23+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-119364

## From the sources

ProFTPD through 1.3.9e and 1.3.10rc1 through 1.3.10rc4 contains a link-following vulnerability in mod_copy that allows authenticated FTP users to bypass Limit WRITE restrictions via symlinks. Attackers can place a symlink in a writable directory and use SITE COPY or SITE CPTO to overwrite files in write-denied locations.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_