Skip to content
Heist/ feed
High

TuxGuitar: Arbitrary Code Execution via maliciously crafted `.tg` file

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-55543

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-55543

tuxguitar

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "helge17",
    "product": "tuxguitar",
    "versions": [
      {
        "status": "affected",
        "version": "< 2.1.0"
      }
    ]
  }
]
Related CVEs
CVE-2026-55543

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#32654 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement