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CVE-2026-26960

CVE-2026-26960 · node-tar has Arbitrary File Read/Write via Hardlink Target Escape Through Symlink Chain in Extraction

This page contains facts from public vulnerability sources. Check the original advisory before updating.

node-tar is a full-featured Tar for Node.js. When using default options in versions 7.5.7 and below, an attacker-controlled archive can create a hardlink inside the extraction directory that points to a file outside the extraction root, enabling arbitrary file read and write as the extracting user. Severity is high because the primitive bypasses path protections and turns archive extraction into a direct filesystem access primitive. This issue has been fixed in version 7.5.8.

CVSS 7.1 · High · EPSS 0.3% · Fix available

Published
Updated

Stack: system · node

Affected products and versions

  • node-tar

    Versions
    • < 7.5.8: Affected

    No fix published

  • node-tar Debian:12

    Versions
    • 6.1.13+~cs7.0.5-1
    Affected ranges
    • ECOSYSTEM: < 6.1.13+~cs7.0.5-1+deb12u1

    Update to 6.1.13+~cs7.0.5-1+deb12u1

  • node-tar Debian:13

    Versions
    • 6.2.1+~cs7.0.8-1
    Affected ranges
    • ECOSYSTEM: < 6.2.1+~cs7.0.8-1+deb13u1

    Update to 6.2.1+~cs7.0.8-1+deb13u1

  • node-tar Debian:14

    Versions
    • 6.2.1+ds1+~cs6.1.13-1
    • 6.2.1+ds1+~cs6.1.13-2
    • 6.2.1+ds1+~cs6.1.13-3
    • 6.2.1+ds1+~cs6.1.13-4
    • 6.2.1+ds1+~cs6.1.13-5
    • 6.2.1+ds1+~cs6.1.13-6
    • 6.2.1+ds1+~cs6.1.13-7
    • 6.2.1+~cs7.0.8-1
    Affected ranges
    • ECOSYSTEM: < 6.2.1+ds1+~cs6.1.13-8

    Update to 6.2.1+ds1+~cs6.1.13-8

  • tar npm

    Affected ranges
    • SEMVER: < 7.5.8

    Update to 7.5.8

  • node-tar Ubuntu:Pro:14.04:LTS

    Versions
    • 0.1.18-1
    • 0.1.18-1ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-tar Ubuntu:Pro:16.04:LTS

    Versions
    • 1.0.3-2
    • 1.0.3-2ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-tar Ubuntu:18.04:LTS

    Versions
    • 2.2.1-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-tar Ubuntu:Pro:20.04:LTS

    Versions
    • 4.4.10+ds1-2
    • 4.4.10+ds1-2ubuntu1
    • 4.4.10+ds1-2ubuntu1+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-tar Ubuntu:22.04:LTS

    Versions
    • 6.1.7+~cs11.3.10-1
    • 6.1.11+~cs11.3.10-1
    • 6.1.11+ds1+~cs6.0.6-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-tar Ubuntu:24.04:LTS

    Versions
    • 6.1.13+~cs7.0.5-1
    • 6.1.13+~cs7.0.5-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-tar Ubuntu:25.10

    Versions
    • 6.2.1+~cs7.0.8-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-tar Ubuntu:26.10

    Versions
    • 6.2.1+ds1+~cs6.1.13-10
    • 7.5.22+~4.0.1-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-tar Ubuntu:26.04:LTS

    Versions
    • 6.2.1+~cs7.0.8-1
    • 6.2.1+ds1+~cs6.1.13-6
    • 6.2.1+ds1+~cs6.1.13-7
    • 6.2.1+ds1+~cs6.1.13-10
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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