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CVE-2026-57217

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

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
rabbitmq / rabbitmq-serveraffected >= 4.2.0, < 4.2.6; affected >= 4.1.0, < 4.1.11; affected >= 4.0.0, < 4.0.21; affected >= 3.13.0, < 3.13.15

CWE

CWE-863

References

ADP enrichment

CISA-ADP

No English description supplied.