{"id":"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.","aliases":["GHSA-wf5f-4jwr-ppcp","PYSEC-2026-1762"],"modified":"2026-08-12T03:51:27.480506805Z","published":"2025-11-10T21:58:37.950Z","related":["openSUSE-SU-2025:15727-1"],"database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-502"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/64xxx/CVE-2025-64512.json"},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/pdfminer/pdfminer.six","events":[{"introduced":"0"},{"fixed":"b808ee05dd7f0c8ea8ec34bdf394d40e63501086"}],"database_specific":{"source":["AFFECTED_FIELD","REFERENCES"],"extracted_events":[{"introduced":"0"},{"fixed":"20251107"}]}}],"versions":["20250506","20250416","20250327","20240706","20221105","20220524","20220506","20220319","20211012","20201018","20200726","20200720","20200517","20200402","20200124","20200121","20200104","20191110","20191107","20191020","20181108","20170720","20170419","20160614"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-64512.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H"}]}