---
id: CVE-2026-109238
title: >-
  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
summary: >-
  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_…
severity: high
cvss: 8.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N'
cwe:
  - CWE-918
published: '2026-10-12'
updated: '2026-10-12'
sourceUpdated: '2026-10-12T17:17:14.420'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-109238'
references:
  - url: >-
      https://github.com/unclecode/crawl4ai/security/advisories/GHSA-wh5w-hmj3-vgg7
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/crawl4ai-0.7.0-before-0.9.4-ssrf-via-link-preview-config-url-seeder
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-10-12T18:00:08.171Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.