by Kastro
Paper/Archive/CVE-2026-109238

CVE-2026-109238

unclecode crawl4ai — Crawl4AI 0.7.0 before 0.9.4 SSRF via link_preview_config URL Seeder

EPSS 0.3%CVSS 9.2
critical.is priorityof 100
32
CVSS 9.2 (CNA)9.2 / 10 × 3027.6Not in CISA KEV+300.0EPSS percentile 22.4.225 × 204.5No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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

ProductAffectedFixed inSource
crawl4ai0.7.0 – < 0.9.40.9.4CNA

Scores by source

VulnCheck (CNA)9.2CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
VulnCheck (CNA)8.6CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

advisorygithub.com/unclecode/crawl4ai/security/advisories/GHSA-wh5w-hmj3-vgg7writeupvulncheck.com/advisories/crawl4ai-0.7.0-before-0.9.4-ssrf-via-link-preview-config-url-seeder