CVE-2026-57217

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.

• CWE-863

• https://github.com/rabbitmq/rabbitmq-server/commit/94f1d33a70fcfa09006649599e79fc92786a2d36Patch
• https://github.com/rabbitmq/rabbitmq-server/commit/ce1f682aa6b398820c5e3ce1ff7435184027c82cPatch
• https://github.com/rabbitmq/rabbitmq-server/pull/15941Issue Tracking, Patch
• https://github.com/rabbitmq/rabbitmq-server/pull/15943Issue Tracking, Patch
• https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6Release Notes
• https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-gpvw-75h5-3wvxExploit, Vendor Advisory
• https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-gpvw-75h5-3wvxExploit, Vendor Advisory

Published

Jul 10, 2026

Last Modified

Jul 13, 2026

Status

Analyzed

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