langchain Server-Side Request Forgery vulnerability
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
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2024-0243US | high8.1 | — | ||
With the following crawler configuration:
```python
from bs4 import BeautifulSoup as Soup
url = "https://example.com"
loader = RecursiveUrlLoader(
url=url, max_depth=2, extra… | ||||
references
External citations — patches, advisories, analysis.
- https://github.com/advisories/GHSA-h9j7-5xvc-qhg5ADVISORY
- https://github.com/langchain-ai/langchainPACKAGE
- https://github.com/langchain-ai/langchain/blob/bf0b3cc0b5ade1fb95a5b1b6fa260e99064c2e22/libs/community/langchain_community/document_loaders/recursive_url_loader.py#L51-L51WEB
- https://github.com/langchain-ai/langchain/commit/bf0b3cc0b5ade1fb95a5b1b6fa260e99064c2e22WEB
- https://github.com/langchain-ai/langchain/pull/15559WEB
- https://github.com/pypa/advisory-database/tree/main/vulns/langchain-exa/PYSEC-2024-235.yamlWEB
- https://huntr.com/bounties/370904e7-10ac-40a4-a8d4-e2d16e1ca861WEB
- https://nvd.nist.gov/vuln/detail/CVE-2024-0243ADVISORY
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