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).

在 GitHub Advisory Database 阅读

2026/10/22 01:55，GitHub Advisory Database 发布了“pypdf: Possible infinite loop when removing tree items”（类型：漏洞公告）。严重程度为“中危”（medium）。相关技术：Python、GitHub。CVE：CVE-2026-113793。