---
id: "CVE-2026-115338"
page: "https://infrastack.ai/live/CVE-2026-115338"
kind: "vulnerability"
aliases: ["CVE-2026-115338"]
title: "Progress WS_FTP Server: unencrypted connections let a network attacker read or alter traffic"
severity: "high"
cvss: 8.1
epss: null
exploited: false
status: "open"
category: "vendor"
products: []
ecosystems: []
tags: ["file-transfer", "self-hosted", "vendor", "ws_ftp_server"]
not_affected_if: ["encrypted-only-connections", "patched-version"]
published_at: "2026-11-09T17:17:11+00:00"
first_seen_at: "2026-11-09T17:27:38+00:00"
updated_at: "2026-11-09T17:28:44+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-115338", "first_seen_at": "2026-11-09T17:27:38+00:00"}]
exploit_sources: []
---

# Progress WS_FTP Server: unencrypted connections let a network attacker read or alter traffic

Link for people: https://infrastack.ai/live/CVE-2026-115338 (this .md is for agents)

WS_FTP Server before 2025.0.5 does not adequately protect communications when unencrypted connections are used. A network attacker can intercept sensitive information in transit or modify requests.

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

## How to check

- Check the installed WS_FTP Server version against `2025.0.5`
- Check whether plain FTP or HTTP connections are enabled on the server, not only TLS-protected ones

## Fix

- WS_FTP Server: move to `2025.0.5` or later

## Timeline

- 2026-11-09T17:27:38+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-115338

## From the sources

Insufficient protection of communications in Progress WS_FTP Server versions prior to 2025.0.5 could allow a network attacker to intercept sensitive information or modify requests when unencrypted connections are used.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_