---
id: CVE-2026-84269
title: 'Gvfs: afp: heap-based buffer overflow in dsi read path'
summary: >-
  A flaw was found in the AFP backend in gvfs. When mounting a share, a
  malicious AFP server can cause the DSI read path to process a length that
  exceeds the size requested by the client. The function does not verify the
  server-provided le…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'
cvssSource: cna
cwe:
  - CWE-122
vendor: GNOME
product: gvfs
affected:
  - gvfs < 1.60.2
  - gvfs (all versions)
  - gvfs
  - gvfs (all versions)
  - gvfs (all versions)
  - gvfs (all versions)
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-04T02:04:25.301415Z'
exploitAvailable: true
published: '2026-09-01'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T01:05:53.431Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-84269'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-84269'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2526784'
    label: RHBZ#2526784
  - url: 'https://gitlab.gnome.org/GNOME/gvfs/-/issues/863'
tags:
  - cve.org
  - exploit-available
epss: 0.00302
epssPercentile: 0.23107
ingestedAt: '2026-11-06T01:43:15.122Z'
---

## Overview

A flaw was found in the AFP backend in gvfs. When mounting a share, a malicious AFP server can cause the DSI read path to process a length that exceeds the size requested by the client. The function does not verify the server-provided length against the pre-sized reply buffer, causing the operation to access past the intended boundaries. This issue allows a malicious server to overflow a heap buffer and crash the gvfsd-afp process, resulting in a denial of service.

## Affected

- `gvfs < 1.60.2`
- `gvfs (all versions)`
- `gvfs`
- `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 vulnerability, do not connect to untrusted AFP servers.