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CVE-2026-57216

MEDIUM
6.8
CVSS 3.1
Description
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.

Metadata

CVE ID
CVE-2026-57216
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-06-24 02:21 UTC
Published
2026-07-10 20:20 UTC
Last updated
2026-07-10 20:20 UTC
Primary CWE
CWE-287
CWE-287: Improper Authentication
Vendor / Product
rabbitmq / rabbitmq-server
Sources
cve.org  ·  NVD

Severity & Metrics

6.8 MEDIUM CVSS 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
Affected products (1)
VendorProductPlatformVersions
rabbitmq rabbitmq-server — >= 4.2.0, < 4.2.6, >= 4.1.0, < 4.1.11, >= 4.0.0, < 4.0.21, >= 3.13.0, < 3.13.15
Weakness (CWE)
CWESourceDescription
CWE-287 cna CWE-287: Improper Authentication
CVSS scores (1)
ScoreSeverityVersionSourceVector
6.8 MEDIUM 3.1 cna CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
References (6)
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