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CVE-2026-55543

CVE-2026-55543 · TuxGuitar: Arbitrary Code Execution via maliciously crafted `.tg` file

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

TuxGuitar is an open-source guitar tablature editor. Prior to 2.1.0, an untrusted .tg file can set gervil.soundbank.path to reference an on-disk archive, including the .tg file itself, whose META-INF/services/javax.sound.midi.Soundbank entry names an attacker-supplied class stored in that archive. When a user opens the file, JARSoundbankReader uses an unverified class loader to load and instantiate that class, executing its constructor with the privileges of the TuxGuitar process. This issue is fixed in version 2.1.0.

CVSS 8.5 · High · EPSS 0.1%

Published
Updated

Stack: system

Affected products and versions

  • tuxguitar

    Versions
    • < 2.1.0: Affected

    No fix published

  • tuxguitar Debian:12

    Versions
    • 1.5.6+dfsg1-6
    • 1.5.6+dfsg1-7
    • 1.5.6+dfsg1-8
    • 1.6.4+dfsg1-1
    • 1.6.6+dfsg1-1
    • 1.6.6+dfsg1-2
    • 1.6.6+dfsg1-3
    • 2.0.0+dfsg1-1
    • 2.0.0+dfsg1-2
    • 2.0.0+dfsg1-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • tuxguitar Debian:13

    Versions
    • 1.6.6+dfsg1-3
    • 2.0.0+dfsg1-1
    • 2.0.0+dfsg1-2
    • 2.0.0+dfsg1-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • tuxguitar Debian:14

    Versions
    • 1.6.6+dfsg1-3
    • 2.0.0+dfsg1-1
    • 2.0.0+dfsg1-2
    • 2.0.0+dfsg1-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • tuxguitar Ubuntu:16.04:LTS

    Versions
    • 1.2-20build1
    • 1.2-21
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • tuxguitar Ubuntu:18.04:LTS

    Versions
    • 1.2-22
    • 1.2-23
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • tuxguitar Ubuntu:20.04:LTS

    Versions
    • 1.2-23
    • 1.2-24
    • 1.2-24ubuntu1
    • 1.2-25
    • 1.2-25build1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • tuxguitar Ubuntu:22.04:LTS

    Versions
    • 1.2-25build1
    • 1.2-25build2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • tuxguitar Ubuntu:24.04:LTS

    Versions
    • 1.5.6+dfsg1-6
    • 1.5.6+dfsg1-7
    • 1.5.6+dfsg1-8
    • 1.5.6+dfsg1-8build2
    • 1.5.6+dfsg1-8build3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • tuxguitar Ubuntu:26.10

    Versions
    • 2.0.0+dfsg1-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • tuxguitar Ubuntu:26.04:LTS

    Versions
    • 1.6.6+dfsg1-3
    • 2.0.0+dfsg1-1
    • 2.0.0+dfsg1-2
    • 2.0.0+dfsg1-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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