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Public proof of conceptFix available

CVE-2024-2965

A public proof of concept exists; no exploitation attested.

  • Published2024-06-06
  • Fixed in0.2.5
  • WeaknessCWE-674

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2024-06-0619:15CVE publishedNVD

Versions per branch

NVD · OSV · CISA-ADP
Langchain
BranchAffectedFixed in
0.2< 0.2.50.2.5
—all versionsno fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As @huntr_ai, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • langchain-ai/langchain
    Affected
    • < 0.2.5fixed in 0.2.5custom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2024-11-03

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • CVE-2024-2965 Red Hat Product Security

    langchain-community: Langchain-community SitemapParser DoS Vulnerability

Full record on NVD

Fix

  1. Update Langchain to 0.2.5

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionpoc2024-06-07
  • NVDCVSS 3.14.7read 2026-10-23
  • CNACVSS 3.04.2known since 2026-10-23
  • CNAweakness (CWE)CWE-674known since 2026-10-23
  • NVDweakness (CWE)CWE-674read 2026-10-23
  • FIRST EPSSEPSS score0.3 %2026-11-09
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryMODERATE2024-06-06

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Published
2024-06-06
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-3hjh-jh2h-vrg6

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.

Is CVE-2024-2965 actively exploited?

A proof-of-concept exploit exists for CVE-2024-2965, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2024-2965?

CVE-2024-2965 has a CVSS v3 base score of 4.7 (MEDIUM severity), with vector string CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.

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