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python-pdfminer.six security update

Type: advisorySource: OSV1 source record

PDF parser and analyzer. Security Fix(es): pdfminer.six before 20251230 contains an insecure deserialization vulnerability in the CMap loading mechanism. The library uses Python pickle to deserialize CMap cache files without validation. An attacker with the ability to place a malicious pickle file in a location accessible to the application can trigger arbitrary code execution or privilege escalation when the file is loaded by a trusted process. This is caused by an incomplete patch to CVE-2025-64512.(CVE-2025-70559)

Announced Source revision 1
Original source ↗

OESA-2026-4210

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:OESA-2026-4210

python-pdfminer.six

Source reference: /affected/0/package/name

Affected versions
Not stated in this record
Fixed versions
20231228-4.oe2403sp3

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "20231228-4.oe2403sp3"
          }
        ]
      }
    ],
    "package": {
      "name": "python-pdfminer.six",
      "purl": "pkg:rpm/openEuler/python-pdfminer.six&distro=openEuler-24.03-LTS-SP3",
      "ecosystem": "openEuler:24.03-LTS-SP3"
    },
    "database_specific": {
      "source": "https://repo.openeuler.org/security/data/osv/OESA-2026-4210.json"
    },
    "ecosystem_specific": {
      "src": [
        "python-pdfminer.six-20231228-4.oe2403sp3.src.rpm"
      ],
      "noarch": [
        "python-pdfminer.six-help-20231228-4.oe2403sp3.noarch.rpm",
        "python3-pdfminer.six-20231228-4.oe2403sp3.noarch.rpm"
      ]
    }
  }
]

Publisher severity

medium

Source reference: /database_specific/severity

Event
#52162 · Revision 1
Added to Heist Feed
Publisher date
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