---
id: CVE-2026-15146
title: >-
  GNU Wget does not validate the IP address provided by an FTP PASV response
  while operating in FTP passive mode
summary: >-
  GNU Wget does not validate the IP address provided by an FTP PASV response
  while operating in FTP passive mode. A malicious FTP server, or an HTTP server
  that redirects to an FTP URL, can exploit this behavior to redirect Wget’s
  data con…
severity: medium
cvss: 5.9
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L'
published: '2026-07-10'
updated: '2026-07-10'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-15146'
references:
  - url: >-
      https://cgit.git.savannah.gnu.org/cgit/wget.git/commit/?id=4f85853f641863d5915786a8413e1a213726a62b
    label: cret@cert.org
  - url: 'https://kb.cert.org/vuls/id/564823'
    label: cret@cert.org
  - url: 'https://www.kb.cert.org/vuls/id/564823'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00164
epssPercentile: 0.04957
ingestedAt: '2026-07-11T20:15:26.194Z'
---

## Overview

GNU Wget does not validate the IP address provided by an FTP PASV response while operating in FTP passive mode. A malicious FTP server, or an HTTP server that redirects to an FTP URL, can exploit this behavior to redirect Wget’s data connection to an arbitrary IP address and port. This allows an attacker to forge server-side requests (SSRF) from the machine running Wget, potentially accessing localhost services or internal network resources.

## Remediation

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