CVE-2024-2965 Denial-of-Service in langchain-community SitemapLoader

2024-06-0618:52:54

CWE-400

@huntr_ai

www.cve.org

cve-2024-2965

langchain

sitemaploader

infinite recursion

python

server crash

resource exhaustion

availability impact

4.2 Medium

CVSS3

Attack Vector

PHYSICAL

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

9.0%

JSON

A Denial-of-Service (DoS) vulnerability exists in the SitemapLoader class of the langchain-community package, 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.

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "langchain-community",
    "vendor": "langchain",
    "versions": [
      {
        "lessThanOrEqual": "latest",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]