{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "fixed": "0.2.5"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "fbeeb6da7512837f43aff415c01ee3bf8a672aeb"
            }
          ],
          "repo": "https://github.com/hwchase17/langchain",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "73c42306745b0831aa6fe7fe4eeb70d2c2d87a82"
            }
          ],
          "repo": "https://github.com/langchain-ai/langchain",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "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.",
  "id": "CVE-2024-2965",
  "modified": "2026-03-13T21:57:05.746204040Z",
  "published": "2024-06-06T19:15:55.897Z",
  "references": [
    {
      "type": "FIX",
      "url": "https://github.com/langchain-ai/langchain/commit/73c42306745b0831aa6fe7fe4eeb70d2c2d87a82"
    },
    {
      "type": "EVIDENCE",
      "url": "https://huntr.com/bounties/90b0776d-9fa6-4841-aac4-09fde5918cae"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}