CVE-2026-40491

Name: CVE-2026-40491
Creator: NVD / NIST
Published: 2026-04-18T03:16:13.157+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.57%

Last modified Jun 17, 2026

CVE-2026-40491 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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. EPSS estimates a 0.57% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.57%

43.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Wkentaro	Gdown	< 5.2.2

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

Timeline

Published: Apr 18, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-40491?

How severe is CVE-2026-40491?

CVE-2026-40491 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.57% probability of exploitation in the next 30 days.

How do I fix CVE-2026-40491?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-40491?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST