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CVE-2024-0243

8.1 · HIGH

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: So…

Published Feb 26, 2024CWE-918EPSS 0.52%

Overview

CVE-2024-0243 is a high-severity vulnerability. It was published on February 26, 2024 and has a CVSS 3.1 base score of 8.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/langchain-ai/langchain/commit/bf0b3cc0b5ade1fb95a5b1b6fa260e99064c2e22GitHubgithub.com/langchain-ai/langchain/pull/15559Refhuntr.com/bounties/370904e7-10ac-40a4-a8d4-e2d16e1ca861GitHubgithub.com/langchain-ai/langchain/commit/bf0b3cc0b5ade1fb95a5b1b6fa260e99064c2e22GitHubgithub.com/langchain-ai/langchain/pull/15559Refhuntr.com/bounties/370904e7-10ac-40a4-a8d4-e2d16e1ca861

How CyberStrike helps

Frequently asked questions

What is CVE-2024-0243?

CVE-2024-0243 is a high-severity vulnerability. It was published on February 26, 2024 and has a CVSS 3.1 base score of 8.1 (HIGH).

How severe is CVE-2024-0243?

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-0243?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-0243?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-0243 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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