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Vulnerability details: VCID-616u-yhzp-hkf7
Vulnerability ID VCID-616u-yhzp-hkf7
Aliases CVE-2026-40491
GHSA-76hw-p97h-883f
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00105 https://api.first.org/data/v1/epss?cve=CVE-2026-40491
epss 0.00105 https://api.first.org/data/v1/epss?cve=CVE-2026-40491
epss 0.00105 https://api.first.org/data/v1/epss?cve=CVE-2026-40491
epss 0.00105 https://api.first.org/data/v1/epss?cve=CVE-2026-40491
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-76hw-p97h-883f
cvssv3.1 6.5 https://github.com/wkentaro/gdown
generic_textual MODERATE https://github.com/wkentaro/gdown
cvssv3.1 6.5 https://github.com/wkentaro/gdown/commit/af569fc6ed300b7974dee66dc51e9f01b57b4dff
generic_textual MODERATE https://github.com/wkentaro/gdown/commit/af569fc6ed300b7974dee66dc51e9f01b57b4dff
ssvc Track https://github.com/wkentaro/gdown/commit/af569fc6ed300b7974dee66dc51e9f01b57b4dff
cvssv3.1 6.5 https://github.com/wkentaro/gdown/releases/tag/v5.2.2
generic_textual MODERATE https://github.com/wkentaro/gdown/releases/tag/v5.2.2
ssvc Track https://github.com/wkentaro/gdown/releases/tag/v5.2.2
cvssv3.1 6.5 https://github.com/wkentaro/gdown/security/advisories/GHSA-76hw-p97h-883f
cvssv3.1_qr MODERATE https://github.com/wkentaro/gdown/security/advisories/GHSA-76hw-p97h-883f
generic_textual MODERATE https://github.com/wkentaro/gdown/security/advisories/GHSA-76hw-p97h-883f
ssvc Track https://github.com/wkentaro/gdown/security/advisories/GHSA-76hw-p97h-883f
cvssv3.1 6.5 https://nvd.nist.gov/vuln/detail/CVE-2026-40491
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2026-40491
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2026-40491
https://github.com/wkentaro/gdown
https://nvd.nist.gov/vuln/detail/CVE-2026-40491
af569fc6ed300b7974dee66dc51e9f01b57b4dff https://github.com/wkentaro/gdown/commit/af569fc6ed300b7974dee66dc51e9f01b57b4dff
GHSA-76hw-p97h-883f https://github.com/advisories/GHSA-76hw-p97h-883f
GHSA-76hw-p97h-883f https://github.com/wkentaro/gdown/security/advisories/GHSA-76hw-p97h-883f
v5.2.2 https://github.com/wkentaro/gdown/releases/tag/v5.2.2
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N Found at https://github.com/wkentaro/gdown
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N Found at https://github.com/wkentaro/gdown/commit/af569fc6ed300b7974dee66dc51e9f01b57b4dff
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2026-04-20T15:49:26Z/ Found at https://github.com/wkentaro/gdown/commit/af569fc6ed300b7974dee66dc51e9f01b57b4dff
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N Found at https://github.com/wkentaro/gdown/releases/tag/v5.2.2
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2026-04-20T15:49:26Z/ Found at https://github.com/wkentaro/gdown/releases/tag/v5.2.2
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N Found at https://github.com/wkentaro/gdown/security/advisories/GHSA-76hw-p97h-883f
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2026-04-20T15:49:26Z/ Found at https://github.com/wkentaro/gdown/security/advisories/GHSA-76hw-p97h-883f
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2026-40491
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.27968
EPSS Score 0.00105
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-11T16:53:09.073244+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2026/40xxx/CVE-2026-40491.json 38.6.0