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CVE-2024-0243— Server-side Request Forgery In Recursive URL Loader

Quick assessment

Affected
langchain-ai langchain-ai/langchain
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

LangChain是通过可组合性使用 LLM 构建应用程序。 LangChain存在代码问题漏洞。攻击者利用该漏洞可以在其中放置一个带有“https://example.completely.different/my_file.html”等链接的恶意 HTML 文件，使爬虫程序继续执行。

AI Predicted 4.4 Difficulty: Easy EPSS 0.52% · P42

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2024-0243

Vulnerability Information
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Vulnerability Title
Server-side Request Forgery In Recursive URL Loader
Source: CVE Program / CVE List V5
Vulnerability Description
With the following crawler configuration: ```python from bs4 import BeautifulSoup as Soup url = "https://example.com" loader = RecursiveUrlLoader( url=url, max_depth=2, extractor=lambda x: Soup(x, "html.parser").text ) docs = loader.load() ``` An attacker in control of the contents of `https://example.com` could place a malicious HTML file in there with links like "https://example.completely.different/my_file.html" and the crawler would proceed to download that file as well even though `prevent_outside=True`. https://github.com/langchain-ai/langchain/blob/bf0b3cc0b5ade1fb95a5b1b6fa260e99064c2e22/libs/community/langchain_community/document_loaders/recursive_url_loader.py#L51-L51 Resolved in https://github.com/langchain-ai/langchain/pull/15559
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
LangChain 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LangChain是通过可组合性使用 LLM 构建应用程序。 LangChain存在代码问题漏洞。攻击者利用该漏洞可以在其中放置一个带有“https://example.completely.different/my_file.html”等链接的恶意 HTML 文件，使爬虫程序继续执行。
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
langchain-ai langchain-ai/langchain unspecified ~ 0.1.0 -

II. Public POCs for CVE-2024-0243

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III. Intelligence Information for CVE-2024-0243

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Patches & Fixes for CVE-2024-0243 (2)

Vendor Advisories for CVE-2024-0243 (1)

IV. Related Vulnerabilities

Same product: langchain-ai/langchain
Same vendor: langchain-ai
Same weakness: CWE-918

V. Comments for CVE-2024-0243

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