# pdfminer-six (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: 20260107.0.0 (Jan 7, 2026): no advisory affects it
- Newest unaffected release: 20260107.0.0 (Jan 7, 2026), the latest release
- Weekly downloads: 16.6M
- Dependents: 2,275
- Releases: 37 since 20140915.0.0
- Registry: https://pypi.org/project/pdfminer-six/
- Releases read: Nov 8, 2026

## Version timeline

Affected versions per advisory, in version order:

- CVE-2025-70559: 20140915.0.0 to 20251229.0.0 (20251230.0.0 is outside it)
- CVE-2025-64512: 20140915.0.0 to 20250506.0.0 (20251107.0.0 is outside it)

## Advisories (2)

### [CVE-2025-70559](https://cve.now/CVE-2025-70559): pdfminer.six before 20251230 contains an insecure deserialization vulnerability in the CMap loading mechanism.

- Severity: Medium 6.5
- Published: Feb 3, 2026
- Affected: fixed in 20251230.
- Fixed in 20251230.0.0 (released Dec 30, 2025, 35 days before disclosure).
- The latest release, 20260107.0.0, is not affected.

### [CVE-2025-64512](https://cve.now/CVE-2025-64512): pdfminer.six vulnerable to Arbitrary Code Execution via Crafted PDF Input

- Severity: High 8.6
- Published: Nov 10, 2025
- Affected: fixed in 20251107.
- Fixed in 20251107.0.0 (released Nov 7, 2025, 3 days before disclosure).
- The latest release, 20260107.0.0, is not affected.

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