GitHub Advisoryadvisory · npm
GHSA-8cj5-5rvv-wf4v tar-fs can extract outside the specified dir with a specific tarball
HIGH
Official page ↗
- Aliases
- CVE-2025-48387
- Ecosystem
- npm
- Packages
- tar-fs
- Severity
- High
- CVSS 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
- Weaknesses
- CWE-22
- Reviewed
- 2025-06-03
Affected packages
• npm tar-fs: < 1.16.5 → fixed in 1.16.5
• npm tar-fs: >= 2.0.0, < 2.1.3 → fixed in 2.1.3
• npm tar-fs: >= 3.0.0, < 3.0.9 → fixed in 3.0.9
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.
```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.
Related
Alias · CVE (1)
- CVE-2025-48387 tar-fs provides filesystem bindings for tar-stream. vulnerability
Weakness · CWE (1)
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory weakness
References
- https://github.com/google/security-research/security/advisories/GHSA-xrg4-qp5w-2c3w web
- https://github.com/mafintosh/tar-fs/security/advisories/GHSA-8cj5-5rvv-wf4v web
- https://nvd.nist.gov/vuln/detail/CVE-2025-48387 advisory
- https://github.com/mafintosh/tar-fs/commit/647447b572bc135c41035e82ca7b894f02b17f0f web
- https://github.com/mafintosh/tar-fs package
- https://lists.debian.org/debian-lts-announce/2025/06/msg00012.html web