CVE-2023-46118

Denial of Service by publishing large messages over the HTTP API

MEDIUM
4.9
CVSS Score
Published: October 24, 2023 at 11:27 PM UTC
Updated: June 17, 2026 at 06:30 AM UTC
2 products affected across 2 vendorsRabbitMQRabbitmq Server

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Severity
MEDIUM4.9
Exploit prediction
EPSS 1%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 3.11.243.12.0 ≤ v < 3.12.7
Affected range stops below 3.11.24, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.12.7, so it looks safe — our inference, not a vendor statement
v < 3.11.24v < 3.12.7
Affected range stops below 3.11.24, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.12.7, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

4.9MEDIUMGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-400

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