pypdf: Unvalidated JPEG image data loading

影響: pip:pypdf < 6.21.1 → 6.21.1

An attacker who uses this vulnerability can craft a PDF which leads to arbitrary image parsers being called. This requires loading an image which claims to use the /DCTDecode filter (JPEG data). Users which do not have the optional Pillow dependency installed in their environment are not affected. Patches This has been fixed in [pypdf==6.21.1](https://github.com/py-pdf/pypdf/releases/tag/6.21.1). Workarounds If you cannot upgrade yet, consider applying the changes from PR [#4222](https:/…

在 GitHub Advisory Database 阅读

2026/10/22 04:58，GitHub Advisory Database 发布了“pypdf: Unvalidated JPEG image data loading”（类型：漏洞公告）。严重程度为“低危”（low）。相关技术：Python、GitHub。CVE：CVE-2026-113786。