CVE-2024-0243

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

How to fix CVE-2024-0243

To remediate CVE-2024-0243, upgrade the affected package to a fixed version below.

• —upgrade to 0.1.0 or later
• —upgrade to bf0b3cc0b5ade1fb95a5b1b6fa260e99064c2e22 or later

Is CVE-2024-0243 being exploited?

Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.

Affected packages (2)

• from 0, < 0.1.0
• from 0, < bf0b3cc0b5ade1fb95a5b1b6fa260e99064c2e22, < bf0b3cc0b5ade1fb95a5b1b6fa260e99064c2e22 | from 0, < 0.1.0

CVSS scores

References (7)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2024-0243
• PATCHgithub.com/langchain-ai/langchain
• WEBgithub.com/langchain-ai/langchain/blob/bf0b3cc0b5ade1fb95a5b1b6fa260e99064c2e22/libs/community/langchain_community/document_loaders/recursive_url_loader.py#L51-L51
• WEBgithub.com