Disclosure summary
CVE-2026-57216 is a medium-severity CWE-290 vulnerability in RabbitMQ. Proxy handling bypasses loopback-only authentication. Cantina reproduced the behavior, verified its security impact, and coordinated disclosure with the affected maintainer.
Verification standard
Cantina publishes a disclosure only after reproducing the behavior, validating its security impact, and coordinating remediation with the affected project.