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CVE-2026-57216

Опубликовано: 10 июл. 2026
Источник: redhat
CVSS3: 6.3
EPSS Низкий

Описание

RabbitMQ is a messaging and streaming broker. Prior to 3.13.15, 4.0.20, 4.1.11, and 4.2.6, AMQP 0-9-1, AMQP 1.0, and Stream Protocol authentication can allow a loopback-restricted user such as guest to connect remotely when traffic is accepted through a trusted PROXY-protocol path and the backend listener is loopback-bound because the loopback check uses the listener-side socket address instead of the real client source. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.

A flaw was found in RabbitMQ, a messaging and streaming broker. The AMQP 0-9-1, AMQP 1.0, and Stream Protocol authentication mechanisms incorrectly perform a loopback check. This allows a user, typically restricted to loopback connections (such as a guest user), to connect remotely. This occurs when traffic is routed through a trusted PROXY-protocol path and the backend listener is bound to the loopback interface, as the check uses the listener-side socket address instead of the actual client source address.

Дополнительная информация

Статус:

Moderate
Дефект:
CWE-358
https://bugzilla.redhat.com/show_bug.cgi?id=2499211rabbitmq: RabbitMQ: Authentication bypass allows remote connection for loopback-restricted users via incorrect loopback check

EPSS

Процентиль: 57%
0.00887
Низкий

6.3 Medium

CVSS3

Связанные уязвимости

CVSS3: 6.8
ubuntu
2 месяца назад

RabbitMQ is a messaging and streaming broker. Prior to 3.13.15, 4.0.20, 4.1.11, and 4.2.6, AMQP 0-9-1, AMQP 1.0, and Stream Protocol authentication can allow a loopback-restricted user such as guest to connect remotely when traffic is accepted through a trusted PROXY-protocol path and the backend listener is loopback-bound because the loopback check uses the listener-side socket address instead of the real client source. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.

CVSS3: 6.8
nvd
2 месяца назад

RabbitMQ is a messaging and streaming broker. Prior to 3.13.15, 4.0.20, 4.1.11, and 4.2.6, AMQP 0-9-1, AMQP 1.0, and Stream Protocol authentication can allow a loopback-restricted user such as guest to connect remotely when traffic is accepted through a trusted PROXY-protocol path and the backend listener is loopback-bound because the loopback check uses the listener-side socket address instead of the real client source. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.

CVSS3: 6.8
msrc
2 месяца назад

RabbitMQ: AMQP 1.0, AMQP 0-9-1, Stream Protocol loopback enforcement can lead to remote guest sessions due to listener-address loopback checks

CVSS3: 6.8
debian
2 месяца назад

RabbitMQ is a messaging and streaming broker. Prior to 3.13.15, 4.0.20 ...

CVSS3: 6.8
github
3 месяца назад

AMQP 1.0, AMQP 0-9-1, Stream Protocol loopback enforcement can lead to remote guest sessions due to listener-address loopback checks

EPSS

Процентиль: 57%
0.00887
Низкий

6.3 Medium

CVSS3