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TI-2026-41424 Aliases CVE-2026-57573

Crawl4AI unauthenticated SSRF in Docker streaming crawl endpoint

Priority MEDIUM 44CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-918 and the CVSS impact.

Summary

Crawl4AI is an open-source LLM-friendly web crawler and scraper. Prior to 0.9.0, the Docker API server applied its SSRF destination check on the non-streaming /crawl path but not on the streaming path. handle_stream_crawl_request passed seed URLs straight to the crawler with no destination validation, allowing a remote unauthenticated client to call POST /crawl/stream or POST /crawl with crawler_config.stream=true with a URL pointing at an internal, private, or link-local address; the server fetched it and streamed the response body back. This issue is fixed in version 0.9.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00445 38th percentileScored 2026-11-07
Fix Fixed crawl4ai (unclecode): 0.9.0

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

VendorProductAffected versionsFixed inStatusSource
unclecodecrawl4aibefore 0.9.00.9.0Patch availableCNA
  • crawl4ai Vendorunclecode Affected before 0.9.0 Fixed in 0.9.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:kidocode:crawl4ai:*:*:*:*:*:*:*:*before 0.9.0Vulnerableunclecode
  • cpe:2.3:a:kidocode:crawl4ai:*:*:*:*:*:*:*:* Versions before 0.9.0 Vulnerable ·unclecode

Remediation

  • Fix · CNA crawl4ai (unclecode) Fixed in 0.9.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-57573

References

Patch 1

Advisory 1

  • 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
See all 17 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences