PyPI: langchain-community

CVE-2024-2965

Safety vulnerability ID: SFTY-20240606-35211

Safety legacy ID: pyup.io-71614

Affected versions of Langchain-community are vulnerable to Denial of service in SitemapLoader Document Loader. 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.

Created at: Nov 5, 2025Updated at: Nov 5, 2025

Overview

Denial of service in langchain-community

Advisory

Affected versions of Langchain-community are vulnerable to Denial of service in SitemapLoader Document Loader. 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.

Affected Package

Affecting langchain-community package, versions
<0.2.5

Also affects

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How to Fix

Upgrade
langchain-community
to
0.2.5
or higher.

Mitigation and Workarounds

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Vulnerable Functions

Functions linked to known vulnerabilities.

Vulnerable function data is available for Enterprise customers

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Safety

Verified by Safety

Our Cybersecurity Intelligence Team reviewed this vulnerability. We combine public data with our own research to find issues not yet reported to public sources.

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