CVE-2026-113790pypdf: Possible large memory usage when parsing arrays and dictionaries

Beschreibung

pypdf is a free and open-source pure-python PDF library. Prior to 6.21.0, an attacker can craft a PDF containing arrays or dictionaries with many elements, causing parsing to consume large amounts of memory. This issue is fixed in version 6.21.0.

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-f54x-cmq8-qg57 Vendor AdvisoryPatch
• https://github.com/py-pdf/pypdf/pull/4218 Issue TrackingPatch
• https://github.com/py-pdf/pypdf/commit/18bd2981a74479483a0b9507602c58a63d6c9b12 Patch
• https://github.com/py-pdf/pypdf/releases/tag/6.21.0 Release Notes