CVE-2026-56266
HIGH
NVD
CVSS Score
8.6
Severity
HIGH
Published
Jun 22, 2026
Vendor
unknown
Description
Crawl4AI before 0.8.7 contains a server-side request forgery vulnerability in the /crawl, /crawl/stream, /md, and /llm endpoints that fetch arbitrary user-supplied URLs without validation. Unauthenticated attackers can bypass the internal-address blocklist using IPv6-mapped IPv4 addresses to reach internal services and cloud metadata endpoints.