CVE-2026-33699

Published March 27th, 2026

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CVSS v3

7.5

HIGH

CVSS v2

N/A

Affected

PROJECT

Description

pypdf is a free and open-source pure-python PDF library. Versions prior to 6.9.2 have a vulnerability in which an attacker can craft a PDF which leads to an infinite loop. This requires reading a file in non-strict mode. This has been fixed in pypdf 6.9.2. If users cannot upgrade yet, consider applying the changes from the patch manually.

py-pdf/pypdf

A pure-python PDF library capable of splitting, merging, cropping, and transforming the pages of PDF files

GitHub

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