GHSA-g867-7843-wf8qHigh

pypdf: Possible infinite loop for not terminated inline images (ASCII85 and ASCIIHex filter)

Published
July 23, 2026
Last Modified
July 23, 2026

🔗 CVE IDs covered (1)

📋 Description

Impact

An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires parsing the content stream of a page with a not terminated inline image, as done when extracting the page text for example. It only affects the ASCII85 and ASCIIHex filters.

Patches

This has been fixed in pypdf==6.14.2.

Workarounds

If you cannot upgrade yet, consider applying the changes from PR #3892.

🎯 Affected products1

  • pip/pypdf:< 6.14.2

🔗 References (6)