unclecode Crawl4AI up to 0.7.x Docker API Deployment /crawl exec code injection

Summaryinfo

A vulnerability categorized as critical has been discovered in unclecode Crawl4AI up to 0.7.x. The affected element is the function exec of the file /crawl of the component Docker API Deployment. The manipulation results in code injection. This vulnerability is known as CVE-2026-26216. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as very critical has been found in unclecode Crawl4AI up to 0.7.x. Affected is the function exec of the file /crawl of the component Docker API Deployment. The manipulation with an unknown input leads to a code injection vulnerability. CWE is classifying the issue as CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Crawl4AI versions prior to 0.8.0 contain a remote code execution vulnerability in the Docker API deployment. The /crawl endpoint accepts a hooks parameter containing Python code that is executed using exec(). The __import__ builtin was included in the allowed builtins, allowing unauthenticated remote attackers to import arbitrary modules and execute system commands. Successful exploitation allows full server compromise, including arbitrary command execution, file read and write access, sensitive data exfiltration, and lateral movement within internal networks.

The weakness was published by Neo. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-26216 since 02/11/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 02/12/2026). The MITRE ATT&CK project declares the attack technique as T1059.

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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