What’s Vulnerable › Vulnerabilities

CVE-2026-109238: Crawl4AI 0.7.0 before 0.9.4 SSRF via link_preview_config URL Seeder

• Severity: high (CVSS 8.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-12 · updated 2026-10-16
• Weakness: CWE-918

Description

Crawl4AI 0.7.0 before 0.9.4 contains a server-side request forgery vulnerability that allows API clients to reach internal addresses by enabling link_preview_config on /crawl requests. Attackers can supply a controlled page with include_external and include_patterns set, causing AsyncUrlSeeder to fetch internal, private, and cloud-metadata links and return their parsed head data.

Affected products

• unclecode crawl4ai: from 0.7.0 before 0.9.4 — fixed in 0.9.4

How to fix

Upgrade to a fixed version: unclecode crawl4ai 0.9.4. Check the vendor advisory for mitigations.

References

• https://github.com/unclecode/crawl4ai/security/advisories/GHSA-wh5w-hmj3-vgg7
• https://www.vulncheck.com/advisories/crawl4ai-0.7.0-before-0.9.4-ssrf-via-link-preview-config-url-seeder

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