CVE-2025-64512Pdfminer.six is a community maintained fork of the original PDFMiner, a tool for extracting information from PDF documents.
Updated under an hour ago ()
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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.
- CVSS
- 7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-502
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
pdfminer pdfminer.six pdfminer:pdfminer.six | before 2025-11-07 | NVD |
debian debian_linux debian:debian_linux | 11.0 | NVD |
References
- https://github.com/pdfminer/pdfminer.six/commit/b808ee05dd7f0c8ea8ec34bdf394d40e63501086patch
- https://github.com/pdfminer/pdfminer.six/releases/tag/20251107release-notes
- https://github.com/pdfminer/pdfminer.six/security/advisories/GHSA-wf5f-4jwr-ppcpexploit, vendor-advisory
- https://lists.debian.org/debian-lts-announce/2025/11/msg00017.htmlmailing-list
- https://lists.debian.org/debian-lts-announce/2026/01/msg00005.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.