漏洞信息
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Vulnerability Title
Crawl4AI: AST Sandbox Escape via gi_frame.f_back Chain - Pre-Auth RCE in Docker API
Vulnerability Description
Crawl4AI is an open-source LLM friendly web crawler & scraper. Prior to 0.8.7, the _safe_eval_expression() function in the computed fields feature uses an AST validator that only blocks attributes starting with underscore. Python generator and frame object attributes (gi_frame, f_back, f_builtins) do NOT start with underscore, enabling a complete sandbox escape to achieve arbitrary code execution. The attack requires no authentication (JWT disabled by default) and is triggered via POST /crawl with a crafted extraction schema. This vulnerability is fixed in 0.8.7.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Vulnerability Title
UncleCode Crawl4AI 处理逻辑错误漏洞
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 0.8.7之前版本存在安全漏洞,该漏洞源于_safe_eval_expression()函数中的AST验证器仅阻止以下划线开头的属性,导致可以通过Python生成器和帧对象属性实现沙箱逃逸,造成任意代码执行。
CVSS Information
N/A
Vulnerability Type
N/A