CVE-2026-102996 — Vulnerability intelligence

py-pdf — pypdf

Published: 2026-09-30T21:17:06.863

CVSS

8.7

CISA KEV

Not listed; not proof of no exploitation

Original source text (not a translation)

pypdf is a free and open-source pure-python PDF library. Prior to 6.18.1, a crafted PDF can provide a TrueType or Type1 simple font with an unusually large /Widths array, causing pypdf/_font.py Font._collect_tt_t1_character_widths to process entries beyond the 256 character codes meaningful for a simple font and consume excessive memory during operations such as text extraction. This issue is fixed in version 6.18.1.

Sources

• CVE-2026-102996
• Patch
• Patch, Issue Tracking
• Release Notes
• Vendor Advisory