---
id: CVE-2023-46118
title: >-
  RabbitMQ vulnerable to Denial of Service by publishing large messages over the
  HTTP API
summary: >-
  RabbitMQ vulnerable to Denial of Service by publishing large messages over the
  HTTP API
severity: medium
cvss: 4.9
cwe:
  - CWE-400
vendor: rabbit_common
product: rabbit_common
ecosystem: erlang
affected:
  - 'rabbit_common >= 3.12.0, < 3.12.7'
  - 'rabbit_common >= 3.11.0, < 3.11.24'
patched:
  - rabbit_common 3.12.7
  - rabbit_common 3.11.24
published: '2026-06-30'
updated: '2026-06-30'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-w6cq-9cf4-gqpg'
references:
  - url: >-
      https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-w6cq-9cf4-gqpg
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2023-46118'
  - url: 'https://lists.debian.org/debian-lts-announce/2023/12/msg00009.html'
  - url: 'https://www.debian.org/security/2023/dsa-5571'
  - url: 'https://github.com/advisories/GHSA-w6cq-9cf4-gqpg'
tags:
  - ghsa
  - erlang
epss: 0.01086
epssPercentile: 0.63844
ingestedAt: '2026-06-30T17:40:12.492Z'
---

## Overview

### 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

## Affected packages

- `rabbit_common >= 3.12.0, < 3.12.7`
- `rabbit_common >= 3.11.0, < 3.11.24`

## Remediation

Upgrade to a patched release:

- `rabbit_common 3.12.7`
- `rabbit_common 3.11.24`