Excessive Iteration Affecting pypdf package, versions [,6.10.2)
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Test your applications- Snyk IDSNYK-PYTHON-PYPDF-16097903
- published17 Apr 2026
- disclosed16 Apr 2026
- creditL3B4nk4
Introduced: 16 Apr 2026
New CVE NOT AVAILABLE CWE-834 (opens in a new tab)Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade pypdf to version 6.10.2 or higher.
Overview
pypdf is an A pure-python PDF library capable of splitting, merging, cropping, and transforming PDF files
Affected versions of this package are vulnerable to Excessive Iteration in the incremental mode for PDF processing. An attacker can cause excessive resource consumption and significantly degrade performance by loading a PDF file with a large trailer /Size value.