CVE-2026-56265 Crawl4AI - Authentication Bypass via Hardcoded JWT Signing Key
Attackers can bypass authentication and gain full access to Crawl4AI's Docker API server by exploiting a hardcoded default JWT signing key.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-56265?
CVE-2026-56265 is a critical vulnerability in Crawl4AI, published on 21 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Crawl4AI before 0.8.7 contains an authentication bypass vulnerability due to a hardcoded default JWT signing key in the Docker API server. Attackers who know the default key can forge valid authentication tokens for any user, bypassing authentication and gaining full access to protected functionality.
Weakness: CWE-798
Which versions are affected by CVE-2026-56265?
It affects 1 product.
Products include Kidocode Crawl4ai.
How do I fix CVE-2026-56265?
Upgrade to a fixed version.
Is CVE-2026-56265 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-56265 exists.
Public exploit code: 1 Nuclei template.
Other vulnerabilities in 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-2026-56261 Crawl4AI - Server-Side Request Forgery via Webhook URLs