CVE-2026-26216 Crawl4AI < 0.8.0 Docker API Unauthenticated Remote Code Execution via Hooks Parameter
Unauthenticated attackers can execute arbitrary Python code via the hooks parameter in the Docker API, leading to full server compromise.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-26216?
CVE-2026-26216 is a critical code injection vulnerability in unclecode Crawl4AI, published on 12 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-94
Which versions are affected by CVE-2026-26216?
3 open source packages ship an affected version, including crawl4ai and Crawl4AI. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
crawl4ai PyPI | All versions | 0.8.0 |
crawl4ai PyPI | All versions | 0.8.0 |
Crawl4AI PyPI | All versions | 0.8.0 |
Products include Kidocode Crawl4ai.
How do I fix CVE-2026-26216?
Upgrade crawl4ai to 0.8.0 or later.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-26216 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-26216 exists.
Public exploit code: 1 Nuclei template and 1 proofs of concept on GitHub.
Other vulnerabilities in unclecode Crawl4AI
- CVE-2026-57572 Crawl4AI: Unauthenticated RCE via Chromium launch-argument injection in browser_config.extra_args
- CVE-2026-53753 Crawl4AI: AST Sandbox Escape via gi_frame.f_back Chain - Pre-Auth RCE in Docker API
- CVE-2026-57571 Crawl4AI arbitrary file write via download filename path traversal
- CVE-2026-56265 Crawl4AI - Authentication Bypass via Hardcoded JWT Signing Key
- CVE-2026-56261 Crawl4AI - Server-Side Request Forgery via Webhook URLs
Sources
Also known as GHSA-5882-5rx9-xgxp, PYSEC-2026-33.