Crawl4AI vulnerabilities

CVE-2026-56264 Medium · 6.1 CWE-94 Jun 30, 2026

Crawl4AI - Arbitrary JavaScript Execution via /execute_js Endpoint

Crawl4AI before 0.8.7 contains an arbitrary JavaScript execution vulnerability in the Docker API server's /execute_js endpoint, which accepts and executes arbitrary user-supplied JavaScript in the server's browser context with --disable-web-security enabled. An attacker can execute arbitrary JavaScript and, combined with the browser's relaxed security settings, perform server-side request forgery against internal services.

CVE-2026-56262 Medium · 6.5 CWE-306 Jun 24, 2026

Crawl4AI - Unauthenticated Access to Monitor Endpoints via Docker API Server

Crawl4AI before 0.8.7 contains an authentication bypass vulnerability in the monitor router endpoints that allows unauthenticated attackers to access destructive operations. Remote attackers can invoke the /monitor/actions/cleanup endpoint and manipulate monitoring state without authentication, causing service disruption.

CVE-2026-56263 Medium · 6.1 CWE-79 Jun 23, 2026

Crawl4AI - Stored Cross-Site Scripting in Monitor Dashboard

Crawl4AI before 0.8.7 contains a stored cross-site scripting vulnerability in the monitor dashboard that renders crawl URLs and error messages via innerHTML without escaping. An attacker can submit a crafted crawl request with malicious markup that executes in an operator's browser when viewing the dashboard.

CVE-2026-56258 High · 8.1 CWE-22 Jun 23, 2026

Crawl4AI - Arbitrary File Write via output_path Symlink and TOCTOU

Crawl4AI before 0.8.8 contains an arbitrary file write vulnerability in the screenshot and PDF endpoints that allows unauthenticated attackers to write files outside the intended directory via symlink and time-of-check-time-of-use (TOCTOU) attacks on the output_path parameter. Remote attackers can exploit insufficient path validation and symlink following to achieve arbitrary file write and potential code execution on systems where the runtime user has write access to executable or cron locations.

CVE-2026-56266 High · 8.6 CWE-918 Jun 22, 2026

Crawl4AI - Server-Side Request Forgery via Direct Crawl Endpoints

Crawl4AI before 0.8.7 contains a server-side request forgery vulnerability in the /crawl, /crawl/stream, /md, and /llm endpoints that fetch arbitrary user-supplied URLs without validation. Unauthenticated attackers can bypass the internal-address blocklist using IPv6-mapped IPv4 addresses to reach internal services and cloud metadata endpoints.

CVE-2026-56265 Critical · 9.8 Public exploit CWE-798 Jun 21, 2026

Crawl4AI Docker API Authentication Bypass via Hardcoded JWT Signing Key

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.