---
id: "CVE-2026-84296"
kind: "vulnerability"
aliases: ["CVE-2026-84296"]
title: "WS_FTP Server: SSH flaw lets logged-in users skip multi-factor login"
severity: "medium"
cvss: 6.8
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["package", "self-hosted", "ssh", "windows", "ws_ftp-server"]
not_affected_if: ["fixed-version", "ssh-disabled"]
published_at: "2026-10-29T16:19:29+00:00"
first_seen_at: "2026-10-29T16:26:01+00:00"
updated_at: "2026-10-29T16:30:13+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-84296", "first_seen_at": "2026-10-29T16:26:01+00:00"}]
---

# WS_FTP Server: SSH flaw lets logged-in users skip multi-factor login

In Progress WS_FTP Server, the SSH component wrongly links authentication factors between accounts, letting an already authenticated user bypass multi-factor authentication. The attacker gets access that should require a second factor.

_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 the fixed ranges below.
- Confirm whether SSH access is enabled for WS_FTP Server on Windows.

## Fix

- WS_FTP Server prior to `2024.0.6` should move to `2024.0.6` or later.
- WS_FTP Server `2025.0.x` before `2025.0.3` should move to `2025.0.3` or later.

## Timeline

- 2026-10-29T16:26:01+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-84296

## From the sources

Multi-Factor Authentication Bypass vulnerability in SSH component in Progress Software WS_FTP Server versions prior to 2024.0.6, and 2025.0.3 on Windows allows authenticated users to bypass MFA requirements through improper association of authentication factors between accounts.

---

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