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.
References
Configurations
No configuration.
History
19 Nov 2025, 01:15
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| References |
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12 Nov 2025, 21:15
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| References | () https://github.com/pdfminer/pdfminer.six/security/advisories/GHSA-wf5f-4jwr-ppcp - |
10 Nov 2025, 22:15
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| New CVE |
Information
Published : 2025-11-10 22:15
Updated : 2025-11-19 01:15
NVD link : CVE-2025-64512
Mitre link : CVE-2025-64512
CVE.ORG link : CVE-2025-64512
JSON object : View
Products Affected
No product.
CWE
CWE-502
Deserialization of Untrusted Data
