CVE-2025-68616: Kozea Weasyprint

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

WeasyPrint helps web developers to create PDF documents. Prior to version 68.0, a server-side request forgery (SSRF) protection bypass exists in WeasyPrint's `default_url_fetcher`. The vulnerability allows attackers to access internal network resources (such as `localhost` services or cloud metadata endpoints) even when a developer has implemented a custom `url_fetcher` to block such access. This occurs because the underlying `urllib` library follows HTTP redirects automatically without re-validating the new destination against the developer's security policy. Version 68.0 contains a patch for the issue.

Affected products

• Kozea Weasyprint: before 68.0 (fixed in 68.0)

Published 2026-01-19. Last modified 2026-07-15.