High 8.6Published Jun 22, 2026

CVE-2026-56266Crawl4AI - Server-Side Request Forgery via Direct Crawl Endpoints

Updated under an hour ago (Oct 27, 2026, 6:40 PM ET)

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It affects Crawl4AI and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Crawl4AI

Exploited in the last 30 days

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: 8.6 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Weakness (CWE): CWE-918
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Analyzed
Record last updated: Jul 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Crawl4AI Crawl4AI crawl4ai:crawl4ai (from the name)	before 0.8.7; 0.8.7 not affected	CNA record
kidocode crawl4ai kidocode:crawl4ai	before 0.8.7	NVD

References

References

https://github.com/unclecode/crawl4ai/security/advisories/GHSA-365w-hqf6-vxfg	vendor-advisory, mitigation
https://github.com/unclecode/crawl4ai	product
https://www.vulncheck.com/advisories/crawl4ai-server-side-request-forgery-via-direct-crawl-endpoints	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.