CVE-2026-57217 — RabbitMQ: Topic authorization can lead to cross-tenant routing-key bypass
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 metada…
Published: 2026-07-10 · CVSS: 7.0 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7