gdown Affected by Arbitrary File Write via Path Traversal in gdown.extractall

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Summary

CVECVE-2026-40491
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-18 03:16:13 UTC
Updated2026-05-01 18:24:32 UTC
Descriptiongdown 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.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

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

EPSS: 0.000520000 probability, percentile 0.160590000 (date 2026-05-05)

Problem Types: CWE-22 | CWE-22 CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
3.1[email protected]Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
3.1CNADECLARED6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Wkentaro Gdown All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Wkentaro Gdown affected < 5.2.2 Not specified

References

ReferenceSourceLinkTags
github.com/wkentaro/gdown/commit/af569fc6ed300b7974dee66dc51e9f01b57b4dff [email protected] github.com Patch
github.com/wkentaro/gdown/security/advisories/GHSA-76hw-p97h-883f [email protected] github.com Exploit, Vendor Advisory
github.com/wkentaro/gdown/releases/tag/v5.2.2 [email protected] github.com Release Notes
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