Vulnerability details

CVE-2026-109238

unclecode Crawl4AI

Crawl4AI 0.7.0 before 0.9.4 SSRF via link_preview_config URL Seeder

CVSS 4.0

9.2Critical

Official 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.

CVSS scores

Score	Version	Source	Vector
9.2Critical	4.0	CVEProject cvelistV5 (CNA) (VulnCheck)	`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N`
8.6High	3.1	CVEProject cvelistV5 (CNA) (VulnCheck)	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N`

Affected products

Vendor	Product	Versions	Source
unclecode	Crawl4AI	0.7.0 ≤ v < 0.9.4	CVEProject cvelistV5 (CNA)

References and advisories

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

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Details

Published: 2026-10-12
Last updated: 2026-10-13
State: Published
Assigner (CNA): VulnCheck
Kolun priority: 19 · Low

Exploit prediction (EPSS)

0.29%

Probability of exploitation in 30 days

22.5%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: None
Technical impact: Partial

Weaknesses (CWE)

CWE-918
Server-Side Request Forgery (SSRF)