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CVE-2026-57573— Crawl4AI unauthenticated SSRF in Docker streaming crawl endpoint

Quick assessment

Affected
unclecode crawl4ai
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

UncleCode Crawl4AI是新加坡UncleCode个人开发者的一款AI驱动的爬虫软件。 UncleCode Crawl4AI 0.9.0之前版本存在服务端请求伪造漏洞，该漏洞源于Docker API服务器在流式路径上缺少SSRF目的地验证，允许远程未经验证的客户端通过POST请求使用指向内部或私有地址的URL，导致服务器获取并流式返回响应体内容。

CVSS 8.6 · High EPSS 0.45% · P39

Affected Version Matrix 1

VendorProduct Version RangeStatus
unclecode crawl4ai < 0.9.0 affected
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I. Basic Information for CVE-2026-57573

Vulnerability Information
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Vulnerability Title
Crawl4AI unauthenticated SSRF in Docker streaming crawl endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
UncleCode Crawl4AI 服务端请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
UncleCode Crawl4AI是新加坡UncleCode个人开发者的一款AI驱动的爬虫软件。 UncleCode Crawl4AI 0.9.0之前版本存在服务端请求伪造漏洞，该漏洞源于Docker API服务器在流式路径上缺少SSRF目的地验证，允许远程未经验证的客户端通过POST请求使用指向内部或私有地址的URL，导致服务器获取并流式返回响应体内容。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
unclecode crawl4ai < 0.9.0 -

II. Public POCs for CVE-2026-57573

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7412 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
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III. Intelligence Information for CVE-2026-57573

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Patches & Fixes for CVE-2026-57573 (1)

Vendor Advisories for CVE-2026-57573 (1)

Same Patch Batch · unclecode · 2026-07-06 · 3 CVEs total

CVE-2026-57572 10.0 CRITICAL Crawl4AI: Unauthenticated RCE via Chromium launch-argument injection in browser_config.ext
CVE-2026-57571 9.6 CRITICAL Crawl4AI arbitrary file write via download filename path traversal

IV. Related Vulnerabilities

Same product: crawl4ai
Same vendor: unclecode
Same weakness: CWE-918