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Fencer Vulns
medium 4.9

CVE-2023-46118 json

Denial of Service by publishing large messages over the HTTP API

published 2023-10-24 3 y ago modified 2026-09-08 2 mo ago also BIT-rabbitmq-2023-46118 , EUVD-2023-50377 , GHSA-w6cq-9cf4-gqpg

cvss
4.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 71%
public exploits
0
none known

Summary

RabbitMQ is a multi-protocol messaging and streaming broker. HTTP API did not enforce an HTTP request body limit, making it vulnerable for denial of service (DoS) attacks with very large messages. 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. This vulnerability has been patched in versions 3.11.24 and 3.12.7.

Patch / fix

  • hex rabbit_common 3.11.24, 3.12.7
  • bitnami rabbitmq 3.11.24, 3.12.7
  • vmware rabbitmq 3.11.24, 3.12.7
  • rabbitmq-server Debian 12 3.10.8-1.1+deb12u1
  • rabbitmq-server Debian 14, Debian 13 3.10.8-3

debian advisories DEBIAN-CVE-2023-46118

  • rabbitmq-server Ubuntu 20.04 LTS 3.8.2-0ubuntu1.5
  • rabbitmq-server Ubuntu 22.04 LTS 3.9.13-1ubuntu0.22.04.2
  • rabbitmq-server Ubuntu 24.04 LTS 3.12.1-1ubuntu1

ubuntu advisories UBUNTU-CVE-2023-46118

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • rabbitmq-server openstack 17.1 3.9.10-3.el9ost

red hat advisories RHSA-2024:0217

  • elixir115 SLE Module for Server Applications 15 SP6, openSUSE Leap 15.6 1.15.7-150300.7.5.1
  • erlang26 SLE Module for Server Applications 15 SP6, openSUSE Leap 15.6 26.2.1-150300.7.5.1
  • rabbitmq-server313 SLE Module for Server Applications 15 SP6, openSUSE Leap 15.6 3.13.1-150600.13.5.3
  • rabbitmq-server SLE Module for Server Applications 15 SP5, SLE Module for Server Applications 15 SP4, openSUSE Leap 15.5 +1 more 3.8.11-150300.3.14.1

suse advisories SUSE-FU-2024:2078-1SUSE-SU-2023:4939-1

  • rabbitmq-server CBL-Mariner 2.0 3.11.24-1
  • rabbitmq-server Azure Linux 3.0 3.13.0-1

azure linux advisories AZL-32107AZL-35196

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-46118 updated cvss 4.9

rabbitmq-server: DoS by publishing large messages over the HTTP API

  • Red Hat OpenStack Platform 16.1 rabbitmq-server Red Hat OpenStack Platform 16.2 rabbitmq-server
    affected: no fix planned “Will not fix”
  • Red Hat OpenStack Platform 18.0 rabbitmq-server
    affected: no fix available
  • Red Hat OpenStack Platform 17.1 rabbitmq-server 3.9.10-3.el9ost
    fixed: vendor fix RHSA-2024:0217

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.32% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
GitHub 3.1 4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
OSV 3.1 4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
hex rabbit_common
>=3.12.0, <3.12.7
>=3.11.0, <3.11.24
3.12.7
3.11.24
bitnami rabbitmq
<3.11.24
>=3.12.0, <3.12.7
3.11.24
3.12.7

Affected products

  • rabbitmq rabbitmq-server

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.