CVE-2024-2965: langchain — Exploit

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.

Is your site exposed to CVE-2024-2965?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

4.7

MEDIUM

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-674 CWE-674

Affected Products

Vendor	Product	Versions
langchain	langchain	< 0.2.5

References

Exploits

https://huntr.com/bounties/90b0776d-9fa6-4841-aac4-09fde5918cae https://huntr.com/bounties/90b0776d-9fa6-4841-aac4-09fde5918cae

Other References

https://github.com/langchain-ai/langchain/commit/73c42306745b0831aa6fe7fe4eeb70d2c2d87a82

Frequently Asked Questions

What is CVE-2024-2965? +

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. It has a CVSS v3.1 base score of 4.7 (MEDIUM).

How severe is CVE-2024-2965? +

CVE-2024-2965 has a CVSS v3.1 score of 4.7 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-2965? +

CVE-2024-2965 affects products from langchain, specifically: langchain. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-2965? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-8936

Fixed a VM panic caused by unbounded recursion in the grpcfuse kernel module when a container created deeply nested directories …

CVE-2025-10728

When the module renders a Svg file that contains a <pattern> element, it might end up rendering it recursively leading …

CVE-2025-11896

In Xpdf 4.05 (and earlier), a PDF object loop in a CMap, via the "UseCMap" entry, leads to infinite recursion …

CVE-2026-46689

Kanidm is an identity management platform. Prior to version 1.9.3, a single unauthenticated GET to any /scim/v1/... endpoint with a …

CVE-2026-44844

eml_parser serves as a python module for parsing eml files and returning various information found in the e-mail as well …

CVE-2026-13506

In Bouncy Castle for Java before 1.85, Lazy ASN.1 sequence forcing resets nesting-depth guard. This issue also affects Bouncy Castle …

CVE-2024-2965