CVE-2026-56264

HIGH SEVERITY

CVSS Score & Metrics

Base Score

8.1 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H                                    

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.

Vulnerability Details

Published Date

June 30, 2026

Last Modified

June 30, 2026

CWE ID

CWE-94

Source

NVD

Vendor

Crawl4AI

Product

Crawl4AI

External References

https://github.com/unclecode/crawl4ai
https://github.com/unclecode/crawl4ai/security/advisories/GHSA-365w-hqf6-vxfg
https://www.vulncheck.com/advisories/crawl4ai-arbitrary-javascript-execution-via-execute-js-endpoint

CVE-2026-56264

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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