---
id: CVE-2024-2965
aliases:
  - GHSA-3hjh-jh2h-vrg6
  - PYSEC-2024-118
  - PYSEC-2026-2561
title: Denial of service in langchain-community
summary: Denial of service in langchain-community
severity: medium
cvss: 4.2
cvssVector: 'CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'
vendor: langchain-community
product: langchain-community
ecosystem: pip
affected:
  - langchain-community < 0.2.5
  - langchain < 0.2.5
patched:
  - langchain-community 0.2.5
  - langchain 0.2.5
published: '2024-06-06'
updated: '2026-07-13'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-3hjh-jh2h-vrg6'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2024-2965'
  - url: 'https://github.com/langchain-ai/langchain/pull/22903'
  - url: >-
      https://github.com/langchain-ai/langchain/commit/73c42306745b0831aa6fe7fe4eeb70d2c2d87a82
  - url: >-
      https://github.com/langchain-ai/langchain/commit/9a877c7adbd06f90a2518152f65b562bd90487cc
  - url: 'https://github.com/langchain-ai/langchain'
  - url: >-
      https://github.com/pypa/advisory-database/tree/main/vulns/langchain/PYSEC-2024-118.yaml
  - url: 'https://huntr.com/bounties/90b0776d-9fa6-4841-aac4-09fde5918cae'
tags:
  - osv
  - pip
epss: 0.00304
epssPercentile: 0.23339
ingestedAt: '2026-07-13T18:57:51.913Z'
---

## Overview

Denial of service in `SitemapLoader` Document Loader in the `langchain-community` package, affecting versions below 0.2.5. 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 packages

- `langchain-community < 0.2.5`
- `langchain < 0.2.5`

## Remediation

Upgrade to a patched release:

- `langchain-community 0.2.5`
- `langchain 0.2.5`