{"id":"CVE-2025-64512","aliases":["GHSA-wf5f-4jwr-ppcp","PYSEC-2026-1762"],"url":"https://o3.security/vulnerability/CVE-2025-64512","summary":"pdfminer.six vulnerable to Arbitrary Code Execution via Crafted PDF Input","details":"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.","published":"2025-11-10T21:58:37.950Z","modified":"2026-07-15T01:48:51.104776545Z","cvss":{"score":8.6,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":2,"affectedPackages":[{"ecosystem":"PyPI","name":"pdfminer-six","fixedVersion":"20251107"}],"fix":{"url":"https://github.com/pdfminer/pdfminer.six/commit/b808ee05dd7f0c8ea8ec34bdf394d40e63501086","label":"pdfminer/pdfminer.six@b808ee0"},"references":[{"type":"WEB","url":"https://github.com/pdfminer/pdfminer.six/releases/tag/20251107"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/11/msg00017.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2026/01/msg00005.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/64xxx/CVE-2025-64512.json"},{"type":"ADVISORY","url":"https://github.com/pdfminer/pdfminer.six/security/advisories/GHSA-wf5f-4jwr-ppcp"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-64512"},{"type":"FIX","url":"https://github.com/pdfminer/pdfminer.six/commit/b808ee05dd7f0c8ea8ec34bdf394d40e63501086"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:48:51.104776545Z"}}