CVE-2026-84269 MEDIUM

CVE-2026-84269: Gvfs: afp: heap-based buffer overflow in dsi read path

Vendor Red Hat
Product Red Hat Enterprise Linux 10
Weakness CWE-122
Published September 1, 2026
Last update September 1, 2026

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

September 1, 2026 CVE published
September 1, 2026 Record updated