CVE-2024-56139: Leonhad Pdftools

Medium severity, CVSS 6.9. EPSS: 0.4% chance of exploitation in the next 30 days.

pdftools is a high level tools to convert PDF files to ePUB formats. In versions up to and including 0.5.0 maliciously crafted epub files can cause a stack overflow leading to a crash. This issue has not yet been addressed and users are advised to avoid untrusted input to their systems.

Affected products

• Leonhad Pdftools: up to and including 0.5.0

Published 2024-12-17. Last modified 2026-06-17.