Server-side Request Forgery (SSRF) Affecting crawl4ai package, versions [0.7.0,0.9.4)


Severity

Recommended
0.0
critical
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.3% (21st percentile)

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  • Snyk IDSNYK-PYTHON-CRAWL4AI-21693569
  • published24 Oct 2026
  • disclosed12 Oct 2026
  • creditUnknown

Introduced: 12 Oct 2026

NewCVE-2026-109238  (opens in a new tab)
CWE-918  (opens in a new tab)

How to fix?

Upgrade Crawl4AI to version 0.9.4 or higher.

Overview

Crawl4AI is a 🚀🤖 Crawl4AI: Open-source LLM Friendly Web Crawler & scraper

Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via the link_preview_config process. An attacker can access internal, private, and cloud-metadata resources by supplying a crafted page with include_external and include_patterns set, causing the AsyncUrlSeeder to fetch and return parsed head data from otherwise restricted addresses.

References

CVSS Base Scores

version 4.0
version 3.1