CVE-2025-59343

EPSS 0.03%

tar-fs has a symlink validation bypass if destination directory is predictable with a specific tarball

Published: 9/24/2025Modified: 2/4/2026

Also known as:GHSA-vj76-c3g6-qr5vCGA-4wv7-2923-8hcg

Description

### Impact v3.1.0, v2.1.3, v1.16.5 and below ### Patches Has been patched in 3.1.1, 2.1.4, and 1.16.6 ### Workarounds You can use the ignore option to ignore non files/directories. ```js ignore (_, header) { // pass files & directories, ignore e.g. symlinks return header.type !== 'file' && header.type !== 'directory' } ``` ### Credit Reported by: Mapta / BugBunny_ai

Affected packages (4)

Debian/node-tar-fsfrom 0, < 2.1.3-0+deb11u2
Debian/node-tar-fsfrom 0, < 2.1.3-0+deb11u2
Debian/node-tar-fsfrom 0, < 2.1.3-0+deb12u2
npm/tar-fs>= 3.0.0, < 3.1.1

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 4.0	—	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

References (6)

ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-59343
ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2025-59343
PATCHhttps://github.com/mafintosh/tar-fs
WEBhttps://github.com/mafintosh/tar-fs/commit/0bd54cdf06da2b7b5b95cd4b062c9f4e0a8c4e09
WEBhttps://github.com/mafintosh/tar-fs/security/advisories/GHSA-vj76-c3g6-qr5v
WEBhttps://lists.debian.org/debian-lts-announce/2025/09/msg00028.html