GHSA-W6CQ-9CF4-GQPG

Vulnerability from github – Published: 2026-06-30 16:39 – Updated: 2026-06-30 16:39
VLAI
Summary
RabbitMQ vulnerable to Denial of Service by publishing large messages over the HTTP API
Details

Summary

Responsibly disclosed by @NSEcho.

HTTP API did not enforce an HTTP request body limit, making it vulnerable for DoS attacks with very large messages.

Details

An authenticated user with sufficient credentials can publish a very large messages over the HTTP API and cause target node to be terminated by an "out-of-memory killer"-like mechanism.

A PoC was provided to Team RabbitMQ privately.

Impact

Denial of Service

Severity
4.9 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Hex",
        "name": "rabbit_common"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.12.0"
            },
            {
              "fixed": "3.12.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Hex",
        "name": "rabbit_common"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.11.0"
            },
            {
              "fixed": "3.11.24"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-46118"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-30T16:39:12Z",
    "nvd_published_at": "2023-10-25T18:17:36Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\n\nResponsibly disclosed by @NSEcho.\n\nHTTP API did not enforce an HTTP request body limit, making it vulnerable for DoS attacks with very large messages. \n\n### Details\n\nAn authenticated user with sufficient credentials can publish a very large messages over the HTTP API\nand cause target node to be terminated by an \"out-of-memory killer\"-like mechanism.\n\nA PoC was provided to Team RabbitMQ privately.\n\n### Impact\n\nDenial of Service",
  "id": "GHSA-w6cq-9cf4-gqpg",
  "modified": "2026-06-30T16:39:12Z",
  "published": "2026-06-30T16:39:12Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-w6cq-9cf4-gqpg"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-46118"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/rabbitmq/rabbitmq-server"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00009.html"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2023/dsa-5571"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "RabbitMQ vulnerable to Denial of Service by publishing large messages over the HTTP API"
}


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