Vulnerability Description
Crawl4AI before 0.8.7 contains an arbitrary JavaScript execution vulnerability in the Docker API server's /execute_js endpoint, which accepts and executes arbitrary user-supplied JavaScript in the server's browser context with --disable-web-security enabled. An attacker can execute arbitrary JavaScript and, combined with the browser's relaxed security settings, perform server-side request forgery against internal services.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Kidocode | Crawl4Ai | < 0.8.7 |
Related Weaknesses (CWE)
References
- https://github.com/unclecode/crawl4aiProduct
- https://github.com/unclecode/crawl4ai/security/advisories/GHSA-365w-hqf6-vxfgMitigationVendor Advisory
- https://www.vulncheck.com/advisories/crawl4ai-arbitrary-javascript-execution-viaThird Party Advisory
FAQ
What is CVE-2026-56264?
CVE-2026-56264 is a vulnerability with a CVSS score of 8.1 (HIGH). Crawl4AI before 0.8.7 contains an arbitrary JavaScript execution vulnerability in the Docker API server's /execute_js endpoint, which accepts and executes arbitrary user-supplied JavaScript in the ser...
How severe is CVE-2026-56264?
CVE-2026-56264 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-56264?
Check the references section above for vendor advisories and patch information. Affected products include: Kidocode Crawl4Ai.