CVE-2025-64512

Pdfminer.six is a community maintained fork of the original PDFMiner, a tool for extracting information from PDF documents. Prior to version 20251107, pdfminer.six will execute arbitrary code from a malicious pickle file if provided with a malicious PDF file. The `CMapDB._load_data()` function in pdfminer.six uses `pickle.loads()` to deserialize pickle files. These pickle files are supposed to be part of the pdfminer.six distribution stored in the `cmap/` directory, but a malicious PDF can specify an alternative directory and filename as long as the filename ends in `.pickle.gz`. A malicious, zipped pickle file can then contain code which will automatically execute when the PDF is processed. Version 20251107 fixes the issue.
Configurations

No configuration.

History

19 Nov 2025, 01:15

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2025/11/msg00017.html -

12 Nov 2025, 21:15

Type Values Removed Values Added
References () https://github.com/pdfminer/pdfminer.six/security/advisories/GHSA-wf5f-4jwr-ppcp - () https://github.com/pdfminer/pdfminer.six/security/advisories/GHSA-wf5f-4jwr-ppcp -

10 Nov 2025, 22:15

Type Values Removed Values Added
New CVE

Information

Published : 2025-11-10 22:15

Updated : 2025-11-19 01:15


NVD link : CVE-2025-64512

Mitre link : CVE-2025-64512

CVE.ORG link : CVE-2025-64512


JSON object : View

Products Affected

No product.

CWE
CWE-502

Deserialization of Untrusted Data