PYSEC-2026-1509
langchain Server-Side Request Forgery vulnerability
At a glance
- Published
- Updated
- CVE
- CVE-2024-0243
- Aliases
- GHSA-h9j7-5xvc-qhg5, PYSEC-2024-235
- CVSS_V3
- CVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N
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
Affected packages
| Package | Versions |
|---|---|
| PyPI · langchain | introduced 0, fixed 0.1.0 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2024-0243 ADVISORY
- https://github.com/langchain-ai/langchain/pull/15559 WEB
- https://github.com/langchain-ai/langchain/commit/bf0b3cc0b5ade1fb95a5b1b6fa260e99064c2e22 WEB
- https://github.com/langchain-ai/langchain PACKAGE
- https://github.com/langchain-ai/langchain/blob/bf0b3cc0b5ade1fb95a5b1b6fa260e99064c2e22/libs/community/langchain_community/document_loaders/recursive_url_loader.py#L51-L51 WEB
- https://github.com/pypa/advisory-database/tree/main/vulns/langchain-exa/PYSEC-2024-235.yaml WEB
- https://huntr.com/bounties/370904e7-10ac-40a4-a8d4-e2d16e1ca861 WEB
- https://pypi.org/project/langchain PACKAGE
- https://github.com/advisories/GHSA-h9j7-5xvc-qhg5 ADVISORY
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — PyPA Advisory Database |