All vulnerabilities

CVE-2025-48387

tar-fs can extract outside the specified dir with a specific tarball

Description

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.

  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.

Patch Available

Fix available through Seal Security. 

No upgrade required, protect your application instantly.

Fix without upgrading
Score
8.7
Severity
High
Ecosystem
JavaScript
Publish Date
June 3, 2025
Modified Date
February 3, 2026
Score Vector
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
Affected Versions