CVE-2025-48387 – tar-fs

Package

Manager: npm
Name: tar-fs
Vulnerable Version: >=0 <1.16.5 || >=2.0.0 <2.1.3 || >=3.0.0 <3.0.9

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C

CVSS v4.0: 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

EPSS: 0.0011 pctl0.30076

Details

tar-fs can extract outside the specified dir with a specific tarball ### Impact v3.0.8, v2.1.2, v1.16.4 and below ### Patches Has been patched in 3.0.9, 2.1.3, and 1.16.5 ### 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 Thank you Caleb Brown from Google Open Source Security Team for reporting this in detail.

Metadata

Created: 2025-06-03T06:14:25Z
Modified: 2025-08-14T19:26:16Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/06/GHSA-8cj5-5rvv-wf4v/GHSA-8cj5-5rvv-wf4v.json
CWE IDs: ["CWE-22"]
Alternative ID: GHSA-8cj5-5rvv-wf4v
Finding: F063
Auto approve: 1