CVE-2025-64512
published 2025-11-10CVE-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…
high7.8CVSS 3.1
AVLACLPRNUIRSUCHIHAH
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.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | pdfminer | < pdfminer 20221105+dfsg-1.1~deb12u1 (bookworm) | pdfminer 20221105+dfsg-1.1~deb12u1 (bookworm) |
| debian | pdfminer | < pdfminer 20200726-1+deb11u2 (bullseye) | pdfminer 20200726-1+deb11u2 (bullseye) |
| pdfminer | pdfminer.six | < 2025-11-07 | 2025-11-07 |
| pdfminer | pdfminer.six | >= 0 < 20251107 | 20251107 |
| pdfminer | pdfminer.six | >= 0 < 20251230 | 20251230 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
ghsa7.8HIGH
osv7.8HIGH