CVE-2026-103000

Name of the Vulnerable Software and Affected Versions pypdf versions prior to 6.19.0

Description A crafted PDF file can contain unusually large alphabetical page-label values. When an application retrieves document page labels, the pypdf/ page labels.py module generates strings that exceed a reasonable length, leading to excessive memory consumption and potentially causing the application to become unavailable.

Recommendations Update to version 6.19.0.