CVE-2026-109239

Medium

Description

Crawl4AI before 0.9.4 contains a blind server-side request forgery vulnerability in RobotsParser.can_fetch that lets unauthenticated attackers bypass Docker server egress controls. Attackers can enable check_robots_txt and use redirects or DNS rebinding to reach internal, loopback, or cloud-metadata addresses for service discovery.

SeverityMedium

CVSS5.3

Exploit probability—

ProductUnclecode Crawl4ai

PublishedOct 12, 2026

First seenOct 12, 2026

Weakness typeCWE-918Server-side request forgery (SSRF)

How to fix

Update

unclecode crawl4ai0.9.4 or later

Vendor advisories

github.com/unclecode/crawl4ai/security/advisories/GHSA-f77g-77vp-r96v

Affected products

Product	Affected versions	Fixed in
unclecode crawl4ai	v < 0.9.4	0.9.4

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.