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Vulnerabilities CVE-2026-57217

CVE-2026-57217

High
Open
TLP:CLEAR

RabbitMQ: Topic authorization can lead to cross-tenant routing-key bypass

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Description

RabbitMQ is a messaging and streaming broker. Prior to 3.13.15, 4.0.21, 4.1.11, and 4.2.6, RabbitMQ topic authorization can allow restricted topic writes and binds during metadata-store failures because topic-permission lookup errors from Khepri can collapse to undefined, which the internal backend treats as allow. This issue is fixed in versions 3.13.15, 4.0.21, 4.1.11, and 4.2.6.

Details

CVSS Score
7.0
EPSS Score
0.35%

28.1th percentile

CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
Confidence
90%
Published
Jul 10, 2026
Last Modified
Jul 13, 2026
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