unclecode Crawl4AI up to 0.7.x Docker API Deployment /execute_js path traversal

Summaryinfo

A vulnerability classified as critical has been found in unclecode Crawl4AI up to 0.7.x. Affected by this vulnerability is an unknown functionality of the file /execute_js of the component Docker API Deployment. The manipulation leads to path traversal. This vulnerability is referenced as CVE-2026-26217. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in unclecode Crawl4AI up to 0.7.x and classified as critical. This issue affects some unknown processing of the file /execute_js of the component Docker API Deployment. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality. The summary by CVE is:

Crawl4AI versions prior to 0.8.0 contain a local file inclusion vulnerability in the Docker API deployment. The /execute_js, /screenshot, /pdf, and /html endpoints accept file:// URLs, allowing unauthenticated remote attackers to read arbitrary files from the server filesystem. An attacker can access sensitive files such as /etc/passwd, /etc/shadow, application configuration files, and environment variables via /proc/self/environ, potentially exposing credentials, API keys, and internal application structure.

The weakness was published by Neo as GHSA-vx9w-5cx4-9796. The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-26217 since 02/11/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

Upgrading to version 0.8.0 eliminates this vulnerability.

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Productinfo

Vendor

• unclecode

Name

• Crawl4AI

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7

Website

• Product: https://github.com/unclecode/crawl4ai/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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