Description
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.
INFO
Published Date :
2025-11-10T21:58:37.950Z
Last Modified :
2026-01-08T22:04:11.704Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2025-64512 vulnerability.
| Vendors | Products |
|---|---|
| Debian |
|
| Pdfminer |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2025-64512.
