CVE-2025-64512
HIGH8.6EPSS 0.14%pdfminer - security update
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.
Affected packages (4)
- Debian/pdfminerfrom 0, < 20200726-1+deb11u1
- Debian/pdfminerfrom 0, < 20200726-1+deb11u1
- Debian/pdfminerfrom 0, < 20221105+dfsg-1.1~deb12u1
- PyPI/pdfminer-sixfrom 0, < 20251107
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.6 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
References (8)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-64512
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2025-64512
- PATCHhttps://github.com/pdfminer/pdfminer.six
- WEBhttps://github.com/pdfminer/pdfminer.six/commit/b808ee05dd7f0c8ea8ec34bdf394d40e63501086
- WEBhttps://github.com/pdfminer/pdfminer.six/releases/tag/20251107
- WEBhttps://github.com/pdfminer/pdfminer.six/security/advisories/GHSA-wf5f-4jwr-ppcp
- WEBhttps://lists.debian.org/debian-lts-announce/2025/11/msg00017.html
- WEBhttps://lists.debian.org/debian-lts-announce/2026/01/msg00005.html