CVE-2026-56266

Crawl4AI - Server-Side Request Forgery via Direct Crawl Endpoints

CVSS 9.2 CRITICALEPSS 0.3%CWE-918

Vexday Risk Score

28Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 9.2EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

22 Jun 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

Crawl4AI · Crawl4AI

Want to know if your infrastructure is exposed to this?

Talk to TrueHacking →

References

https://github.com/unclecode/crawl4ai https://github.com/unclecode/crawl4ai/security/advisories/GHSA-365w-hqf6-vxfg https://www.vulncheck.com/advisories/crawl4ai-server-side-request-forgery-via-direct-crawl-endpoints