{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "fixed": "7.10"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "b379816178abdcd59135aa32f990a4b3bbbfb54b"
            },
            {
              "fixed": "4663090a8fb036146dfe77718cff612b0101cb0f"
            }
          ],
          "repo": "https://github.com/cesanta/mongoose",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "The HTTP server in Mongoose before 7.10 accepts requests containing negative Content-Length headers. By sending a single attack payload over TCP, an attacker can cause an infinite loop in which the server continuously reparses that payload, and does not respond to any other requests.",
  "id": "CVE-2023-34188",
  "modified": "2026-04-01T23:09:04.578277410Z",
  "published": "2023-06-23T20:15:09.053Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/cesanta/mongoose/compare/7.9...7.10"
    },
    {
      "type": "ADVISORY",
      "url": "https://security.netapp.com/advisory/ntap-20250228-0001/"
    },
    {
      "type": "FIX",
      "url": "https://github.com/cesanta/mongoose/pull/2197"
    },
    {
      "type": "FIX",
      "url": "https://github.com/cesanta/mongoose/commit/4663090a8fb036146dfe77718cff612b0101cb0f"
    },
    {
      "type": "ARTICLE",
      "url": "https://blog.narfindustries.com/blog/narf-discovers-critical-vulnerabilities-in-cesanta-mongoose-http-server"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}