---
id: CVE-2026-28295
title: 'Gvfs: gvfs ftp backend: information disclosure via untrusted pasv responses'
summary: >-
  A flaw was found in the FTP GVfs backend. A malicious FTP server can exploit
  this vulnerability by providing an arbitrary IP address and port in its
  passive mode (PASV) response. The client unconditionally trusts this
  information and att…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-918
vendor: Red Hat
product: gvfs
affected:
  - gvfs (all versions)
  - gvfs (all versions)
  - gvfs (all versions)
  - gvfs (all versions)
  - gvfs (all versions)
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-02-26T18:07:04.296631Z'
published: '2026-02-26'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T18:23:51.812Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-28295'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-28295'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2443004'
    label: RHBZ#2443004
tags:
  - cve.org
epss: 0.00219
epssPercentile: 0.12426
ingestedAt: '2026-11-06T19:01:36.636Z'
---

## Overview

A flaw was found in the FTP GVfs backend. A malicious FTP server can exploit this vulnerability by providing an arbitrary IP address and port in its passive mode (PASV) response. The client unconditionally trusts this information and attempts to connect to the specified endpoint, allowing the malicious server to probe for open ports accessible from the client's network.

## Affected

- `gvfs (all versions)`
- `gvfs (all versions)`
- `gvfs (all versions)`
- `gvfs (all versions)`
- `gvfs (all versions)`

## Remediation

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

### Workarounds

To mitigate this issue, users should avoid connecting to untrusted or unknown FTP servers when using applications that rely on the GVfs FTP backend. This vulnerability requires the client to interact with a malicious FTP server for exploitation.