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CVE-2026-54651

MEDIUM CVSS: 5.5 Published: 2026-06-22 Modified: 2026-06-24

Description

pypdf is a free and open-source pure-python PDF library. Prior to 6.13.1, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires merging a file with threads/articles into a writer. This vulnerability is fixed in 6.13.1.

Affected Platforms

Pypdf Project Pypdf

Weakness Type

CWE-835

References