GHSA-3hjh-jh2h-vrg6: Denial of service in langchain

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1. GitHub Advisory Database
2. GitHub Reviewed
3. CVE-2024-2965

Denial of service in langchain

Moderate severity GitHub Reviewed Published Jun 6, 2024 to the GitHub Advisory Database • Updated Jun 6, 2024

Package

pip langchain (pip)

Affected versions

<= 0.2.2

Description

A Denial-of-Service (DoS) vulnerability exists in the SitemapLoader class of the langchain-ai/langchain repository, affecting all versions. The parse_sitemap method, responsible for parsing sitemaps and extracting URLs, lacks a mechanism to prevent infinite recursion when a sitemap URL refers to the current sitemap itself. This oversight allows for the possibility of an infinite loop, leading to a crash by exceeding the maximum recursion depth in Python. This vulnerability can be exploited to occupy server socket/port resources and crash the Python process, impacting the availability of services relying on this functionality.

References

• https://nvd.nist.gov/vuln/detail/CVE-2024-2965
• https://huntr.com/bounties/90b0776d-9fa6-4841-aac4-09fde5918cae

Published to the GitHub Advisory Database

Jun 6, 2024