CVE-2026-57217

NameCVE-2026-57217
DescriptionRabbitMQ 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.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
rabbitmq-server (PTS)bullseye (security), bullseye3.8.9-3+deb11u1vulnerable
bookworm, bookworm (security)3.10.8-1.1+deb12u1vulnerable
trixie4.0.5-6+deb13u2vulnerable
forky, sid4.3.2-4fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
rabbitmq-serversource(unstable)4.3.0-2

Notes

https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-gpvw-75h5-3wvx
https://github.com/rabbitmq/rabbitmq-server/pull/15941
https://github.com/rabbitmq/rabbitmq-server/pull/15943
https://github.com/rabbitmq/rabbitmq-server/commit/ce1f682aa6b398820c5e3ce1ff7435184027c82c (main)
https://github.com/rabbitmq/rabbitmq-server/commit/94f1d33a70fcfa09006649599e79fc92786a2d36 (v4.2.6)

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