CVE-2026-56264

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 v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/unclecode/crawl4ai	Product
https://github.com/unclecode/crawl4ai/security/advisories/GHSA-365w-hqf6-vxfg	Mitigation Vendor Advisory
https://www.vulncheck.com/advisories/crawl4ai-arbitrary-javascript-execution-via-execute-js-endpoint	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:kidocode:crawl4ai:*:*:*:*:*:*:*:*

History

06 Jul 2026, 16:08

Type	Values Removed	Values Added
CPE		cpe:2.3:a:kidocode:crawl4ai::::::::
First Time		Kidocode Kidocode crawl4ai
References	~~() https://github.com/unclecode/crawl4ai -~~	() https://github.com/unclecode/crawl4ai - Product
References	~~() https://github.com/unclecode/crawl4ai/security/advisories/GHSA-365w-hqf6-vxfg -~~	() https://github.com/unclecode/crawl4ai/security/advisories/GHSA-365w-hqf6-vxfg - Mitigation, Vendor Advisory
References	~~() https://www.vulncheck.com/advisories/crawl4ai-arbitrary-javascript-execution-via-execute-js-endpoint -~~	() https://www.vulncheck.com/advisories/crawl4ai-arbitrary-javascript-execution-via-execute-js-endpoint - Third Party Advisory

30 Jun 2026, 23:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-30 23:17

Updated : 2026-07-06 16:08

NVD link : CVE-2026-56264

Mitre link : CVE-2026-56264

CVE.ORG link : CVE-2026-56264

JSON object : View

Products Affected

kidocode

crawl4ai

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

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