Path Traversal in TuxGuitar by Helge Schneider
CVE-2026-55543

8.5HIGH

Key Information:

Vendor

Helge17

Status
Tuxguitar
Vendor
CVE Published:
16 October 2026

What is CVE-2026-55543?

TuxGuitar, an open-source guitar tablature editor, contains a vulnerability where untrusted .tg files can reference harmful on-disk archives. Specifically, the issue allows a .tg file to manipulate the gervil.soundbank.path to lead to an unverified class loader instantiating a potentially malicious class. This could enable execution of arbitrary code with the same privileges as the TuxGuitar process when the flawed file is opened. This vulnerability was addressed in version 2.1.0, making it crucial for users to upgrade immediately.

Affected Version(s)

tuxguitar < 2.1.0

References

https://github.com/helge17/tuxguitar/security/advisories/...
x_refsource_CONFIRM
https://github.com/helge17/tuxguitar/commit/a7eef20e2e02e...
x_refsource_MISC
https://github.com/helge17/tuxguitar/releases/tag/2.1.0
x_refsource_MISC

CVSS V4

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.