---
id: CVE-2026-119568
title: vsftpd through 3.0.5 require_ssl_reuse Bypass via FTPS Data Channel Hijacking
summary: >-
  vsftpd through 3.0.5 contains an authentication bypass vulnerability in
  ssl_data_accept() that allows unauthenticated attackers to hijack FTPS data
  connections by resuming their own TLS session ticket. Attackers sharing the
  victim's sour…
severity: high
cvss: 7.4
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'
cvssSource: cna
cwe:
  - CWE-940
vendor: vsftpd
product: vsftpd
affected:
  - vsftpd <= 3.0.5
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-30T15:34:52.633586Z'
published: '2026-10-30'
updated: '2026-10-30'
sourceUpdated: '2026-10-30T15:54:01.560Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-119568'
references:
  - url: 'https://abraxaslabs.tech/research/vsftpd-ssl-data-any-ticket'
  - url: 'https://security.appspot.com/vsftpd.html'
  - url: >-
      https://www.vulncheck.com/advisories/vsftpd-through-3.0.5-require-ssl-reuse-bypass-via-ftps-data-channel-hijacking
    label: >-
      VulnCheck Advisory: vsftpd through 3.0.5 require_ssl_reuse Bypass via FTPS
      Data Channel Hijacking
tags:
  - cve.org
epss: 0.00404
epssPercentile: 0.34925
ingestedAt: '2026-11-05T16:07:30.517Z'
---

## Overview

vsftpd through 3.0.5 contains an authentication bypass vulnerability in ssl_data_accept() that allows unauthenticated attackers to hijack FTPS data connections by resuming their own TLS session ticket. Attackers sharing the victim's source IP can obtain a ticket via AUTH TLS, then connect to the victim's PASV port to steal downloads or inject upload data.

## Affected

- `vsftpd <= 3.0.5`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.