VulnerabilityAnalyzed

CVE-2026-40491

Versions prior to 5.2.2 are vulnerable to a Path Traversal attack within the extractall functionality.

HIGH 7.8EPSS 0.57%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.57%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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.

CVSS 3.1: 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS: 0.57% probability · 46th percentile
CISA KEV: Not listed
Weakness: CWE-22
Affected: wkentaro/gdown
Source: security-advisories@github.com

References

https://github.com/wkentaro/gdown/commit/af569fc6ed300b7974dee66dc51e9f01b57b4dffPatch
https://github.com/wkentaro/gdown/releases/tag/v5.2.2Release Notes
https://github.com/wkentaro/gdown/security/advisories/GHSA-76hw-p97h-883fExploit, Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.