GHSA-x284-j5p8-9c5pMediumCVSS 6.5

pypdf: Manipulated FlateDecode image dimensions can exhaust RAM

Published
April 16, 2026
Last Modified
May 5, 2026

🔗 CVE IDs covered (1)

📋 Description

Impact

An attacker who uses this vulnerability can craft a PDF which leads to the RAM being exhausted. This requires accessing an image using /FlateDecode with large size values.

Patches

This has been fixed in pypdf==6.10.2.

Workarounds

If you cannot upgrade yet, consider applying the changes from PR #3734.

🎯 Affected products1

  • pip/pypdf:< 6.10.2

🔗 References (6)