CVE-2026-40491 MEDIUM

CVE-2026-40491: gdown Affected by Arbitrary File Write via Path Traversal in gdown.extractall

Vendor Wkentaro
Product gdown
Weakness CWE-22 · Path traversal
Published April 18, 2026
Last update April 20, 2026

CVSS base score

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

CVSS vector

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

What the vulnerability does

01Description

gdown is a Google Drive public file/folder downloader. Versions prior to 5.2.2 are vulnerable to a Path Traversal attack within the extractall functionality. When extracting a maliciously crafted ZIP or TAR archive, the library fails to sanitize or validate the filenames of the archive members. This allow files to be written outside the intended destination directory, potentially leading to arbitrary file overwrite and Remote Code Execution (RCE). Version 5.2.2 contains a fix.

Key dates

02Disclosure timeline

April 18, 2026 CVE published
April 20, 2026 Record updated