Crawl4AI - Server-Side Request Forgery via Webhook URLs
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-918 and the CVSS impact.
Summary
Crawl4AI before 0.8.7 contains a server-side request forgery (SSRF) vulnerability in the Docker API server's /crawl/job and /llm/job endpoints, which accept webhook URLs without destination validation. An attacker can supply webhook URLs pointing to private or internal IP ranges, Docker networks, or cloud metadata endpoints (e.g. 169.254.169.254), causing the server to make requests to internal services and potentially expose cloud metadata.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Crawl4AI (Crawl4AI) Fixed in 0.8.7
Timeline
- 2026-10-02 Threatist record created from CVE-2026-56261
- 2026-10-03 Alias added: GHSA-f23g-2f38-gg94
References
More unclecode Crawl4ai vulnerabilities
- TI-2026-38760 Crawl4AI: AST Sandbox Escape via gi_frame.f_back Chain - Pre-Auth RCE in Docker API CVSS 3.1CRITICAL 10.0
- TI-2026-40630 Crawl4AI - Authentication Bypass via Hardcoded JWT Signing Key CVSS 4.0CRITICAL 9.3
- TI-2026-21207 Crawl4AI < 0.8.0 Docker API Unauthenticated Remote Code Execution via Hooks Parameter CVSS 4.0CRITICAL 10.0
- TI-2026-41423 Crawl4AI: Unauthenticated RCE via Chromium launch-argument injection in browser_config.extra_args CVSS 3.1CRITICAL 10.0
- TI-2026-21208 Crawl4AI < 0.8.0 Docker API Local File Inclusion via file URL Handling CVSS 4.0CRITICAL 9.2
- TI-2026-40631 Crawl4AI - Server-Side Request Forgery via Direct Crawl Endpoints CVSS 4.0CRITICAL 9.2
Sources
- CVE-2026-56261 · CVE Program
- CVE-2026-56261 · NVD
- FIRST EPSS
- GHSA-f23g-2f38-gg94 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences