# CVE-2025-48387: tar-fs has issue where extract can write outside the specified dir with a specific tarball

CVE-2025-48387 is fixed in node-tar-fs on 1 platform, first by DEBIAN-CVE-2025-48387, released June 2, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2025-48387
- Priority: High
- CVSS: 8.2 (Important)
- EPSS: 0.0058
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 2, 2025
- Weakness: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-48387

## Description

tar-fs provides filesystem bindings for tar-stream. Versions prior to 3.0.9, 2.1.3, and 1.16.5 have an issue where an extract can write outside the specified dir with a specific tarball. This has been patched in versions 3.0.9, 2.1.3, and 1.16.5. As a workaround, use the ignore option to ignore non files/directories.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | node-tar-fs Debian 12.15 (bookworm) | 2.1.3-0+deb12u1 | [DEBIAN-CVE-2025-48387](https://patchblox.com/security/data/fix/linux/debian-cve-2025-48387.md) | Jun 2, 2025 |
| Linux | node-tar-fs Debian 13.5 (trixie) | 3.0.9+~cs2.0.4-1 | [DEBIAN-CVE-2025-48387](https://patchblox.com/security/data/fix/linux/debian-cve-2025-48387.md) | Jun 2, 2025 |
| Linux | node-tar-fs Debian 14 | 3.0.9+~cs2.0.4-1 | [DEBIAN-CVE-2025-48387](https://patchblox.com/security/data/fix/linux/debian-cve-2025-48387.md) | Jun 2, 2025 |
| Linux | node-tar-fs Ubuntu 22.04.1 LTS (jammy) | 2.1.1-6ubuntu0.22.04.1~esm1 | [node-tar-fs 2.1.1-6ubuntu0.22.04.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-node-tar-fs-2.1.1-6ubuntu0.22.04.1-esm1.md) | Sep 24, 2025 |
| Linux | node-tar-fs Ubuntu 24.04.5 LTS (noble) | 2.1.1-6ubuntu0.24.04.1~esm1 | [node-tar-fs 2.1.1-6ubuntu0.24.04.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-node-tar-fs-2.1.1-6ubuntu0.24.04.1-esm1.md) | Sep 24, 2025 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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