pypdf: Possible infinite loop when removing tree items

影響: pip:pypdf < 6.20.1 → 6.20.1

An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires removing an object from a tree, for example an outline item. Patches This has been fixed in [pypdf==6.20.1](https://github.com/py-pdf/pypdf/releases/tag/6.20.1). Workarounds If you cannot upgrade yet, consider applying the changes from PR [#4188](https://github.com/py-pdf/pypdf/pull/4188).

GitHub Advisory Databaseで読む

2026/10/22 01:55、GitHub Advisory Databaseが「pypdf: Possible infinite loop when removing tree items」を公開しました (種別: 脆弱性アドバイザリ)。重大度は「警告」(medium) です。関連する技術: Python、GitHub。CVE: CVE-2026-113793。