CVE-2026-115572pypdf: Possible long runtimes for repeated references to the same missing object

Beschreibung

pypdf is a free and open-source pure-python PDF library. Prior to 6.21.2, an attacker can craft a PDF that repeatedly references the same nonexistent indirect object, causing relevant file parts such as pages to trigger repeated full-file recovery loads and long runtimes when accessed. This issue is fixed in version 6.21.2.

Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.

Betroffene Produkte und Versionen

Referenzen und Patches

• https://github.com/py-pdf/pypdf/security/advisories/GHSA-6c7f-9265-g8fw
• https://github.com/py-pdf/pypdf/pull/4240
• https://github.com/py-pdf/pypdf/commit/68a0e5046cc9e14a6c24a21a713f3c7fbde18b4b
• https://github.com/py-pdf/pypdf/releases/tag/6.21.2