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Vulnerability disclosure

Topic permissions fail open during metadata errors

CVE-2026-57217

Affected product
RabbitMQ
Severity
High
CVSS
7.0
Weakness
CWE-755
Published

Disclosure summary

Cantina identified and human-verified this vulnerability in RabbitMQ. The finding was coordinated with the affected maintainer through responsible disclosure before publication.

Topic permissions fail open during metadata errors.

Verification standard

Cantina publishes a disclosure only after reproducing the behavior, validating its security impact, and coordinating remediation with the affected project.