VULNERABILITY INTELLIGENCE

CVE-2025-68616

CVSS score7.5 HIGH
EPSS probability0.70%
CISA KEVNot currently listed
Published2026-01-19
Last modified2026-07-15
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Description

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.

Weakness classification

  • security-advisories@github.com: CWE-601
  • nvd@nist.gov: CWE-918
  • 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-918

Primary references