Vulnerability · Published Oct 12, 2026 · Assigned by VulnCheck
CVE-2026-109239Crawl4AI before 0.9.4 Blind SSRF via RobotsParser.can_fetch robots.txt Fetch
Medium 5.3
In plain English
A medium-severity server-side request forgery in crawl4ai from unclecode. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities).
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.3%top 81.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
References
- GitHub Security Advisory (GHSA-f77g-77vp-r96v) vendor-advisory
- VulnCheck Advisory: Crawl4AI before 0.9.4 Blind SSRF via RobotsParser.can_fetch robots.txt Fetch third-party-advisory