CVE-2026-26217 Crawl4AI < 0.8.0 Docker API Local File Inclusion via file URL Handling
Unauthenticated attackers can read arbitrary server files via file:// URLs in Crawl4AI Docker API endpoints, exposing sensitive data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-26217?
CVE-2026-26217 is a critical path traversal 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 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.
Weakness: CWE-22
Which versions are affected by CVE-2026-26217?
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-2026-26217?
Upgrade crawl4ai to 0.8.0 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-26217 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-26217 exists.
Public exploit code: 1 Nuclei template.
Other vulnerabilities in unclecode Crawl4AI
- CVE-2026-57572 Crawl4AI: Unauthenticated RCE via Chromium launch-argument injection in browser_config.extra_args
- CVE-2026-26216 Crawl4AI < 0.8.0 Docker API Unauthenticated Remote Code Execution via Hooks Parameter
- 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
Sources
Also known as GHSA-vx9w-5cx4-9796, PYSEC-2026-34.