PoC Index

CVE-2024-0243

HIGH 8.1EPSS 0.5%

With the following crawler configuration:```pythonfrom bs4 import BeautifulSoup as Soupurl = "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-L51Resolved in https://github.com/langchain-ai/langchain/pull/15559

CVSS v3.1
8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v3.0
3.7 LOWCVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N
CVSS v3.0
3.7 LOWCVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N
EPSS
0.52% chance of exploitation in the next 30 days, 42th percentile
Published
2024-02-24
Updated
2025-04-22

Proof-of-concept exploits (1)

References

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