# fonttools (PyPI) vulnerabilities

2 known vulnerabilities (1 high, 1 medium), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: not known (cve.now hasn't read this package's releases)
- Newest unaffected release: not known without release data
- Weekly downloads: 57.4M
- Dependents: 60.7K
- Registry: https://pypi.org/project/fonttools/

## Advisories (2)

### [CVE-2025-66034](https://cve.now/CVE-2025-66034): fontTools is Vulnerable to Arbitrary File Write and XML injection in fontTools.varLib

- Severity: Medium 6.3
- Published: Nov 29, 2025
- Affected: from 4.33.0, fixed in 4.60.2.

### [CVE-2023-45139](https://cve.now/CVE-2023-45139): fonttools XML External Entity Injection (XXE) Vulnerability

- Severity: High 7.5
- Published: Jan 10, 2024
- Affected: from 4.28.2, fixed in 4.43.0.

---

Source: cve.now
Built by [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown), AI-native observability and security: automatic issue detection, plain-language log search and live dashboards.
Page: https://cve.now/packages/pypi/fonttools
Site guide for agents: https://cve.now/llms.txt
Uses NVD data; not endorsed by NVD.
