CVE-2026-57217
published 2026-07-10CVE-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…
PriorityP340medium6.5CVSS 3.1
AVNACLPRLUINSUCHINAN
EPSS
0.35%
27.6th percentile
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
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| broadcom | rabbitmq_server | >= 3.13.0 < 4.2.6 | 4.2.6 |
| rabbitmq | rabbitmq-server | — | — |
| rabbitmq | rabbitmq-server | — | — |
| rabbitmq | rabbitmq-server | — | — |
| rabbitmq | rabbitmq-server | — | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
nvdv4.07.0HIGHCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vendor_redhat6.5MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Red Hat
rabbitmq: RabbitMQ: Authorization bypass allows unauthorized topic writes and binds during metadata-store failures
vendor_redhat·2026-07-10·CVSS 6.5
CVE-2026-57217 [MEDIUM] CWE-280 rabbitmq: RabbitMQ: Authorization bypass allows unauthorized topic writes and binds during metadata-store failures
rabbitmq: RabbitMQ: Authorization bypass allows unauthorized topic writes and binds during metadata-store failures
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.
A flaw was found in RabbitMQ, a messaging and streaming broker. During metadata-store failures, the topic authorization mechanism can incorrectly allow restricted topic writes and binds. This occurs because permission lookup errors from Khepri are treated as an 'allow' condition by the internal ba
VulDB
RabbitMQ up to 3.13.14/4.0.20/4.1.10/4.2.5 Topic Authorization lookup improper authorization
vuldb·2026-07-10·CVSS 7.0
CVE-2026-57217 [HIGH] RabbitMQ up to 3.13.14/4.0.20/4.1.10/4.2.5 Topic Authorization lookup improper authorization
A vulnerability categorized as critical has been discovered in RabbitMQ up to 3.13.14/4.0.20/4.1.10/4.2.5. Affected by this vulnerability is the function lookup of the component Topic Authorization. Such manipulation leads to improper authorization.
This vulnerability is referenced as CVE-2026-57217. It is possible to launch the attack remotely. No exploit is available.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-57217 rabbitmq-server: RabbitMQ: Authorization bypass allows unauthorized topic writes and binds during metadata-store failures [fedora-all]
bugzilla·2026-07-28·CVSS 6.5
CVE-2026-57217 [MEDIUM] CVE-2026-57217 rabbitmq-server: RabbitMQ: Authorization bypass allows unauthorized topic writes and binds during metadata-store failures [fedora-all]
CVE-2026-57217 rabbitmq-server: RabbitMQ: Authorization bypass allows unauthorized topic writes and binds during metadata-store failures [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
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.
Bugzilla
CVE-2026-57217 rabbitmq: RabbitMQ: Authorization bypass allows unauthorized topic writes and binds during metadata-store failures
bugzilla·2026-07-10·CVSS 6.5
CVE-2026-57217 [MEDIUM] CVE-2026-57217 rabbitmq: RabbitMQ: Authorization bypass allows unauthorized topic writes and binds during metadata-store failures
CVE-2026-57217 rabbitmq: RabbitMQ: Authorization bypass allows unauthorized topic writes and binds during metadata-store failures
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.
https://github.com/rabbitmq/rabbitmq-server/commit/94f1d33a70fcfa09006649599e79fc92786a2d36https://github.com/rabbitmq/rabbitmq-server/commit/ce1f682aa6b398820c5e3ce1ff7435184027c82chttps://github.com/rabbitmq/rabbitmq-server/pull/15941https://github.com/rabbitmq/rabbitmq-server/pull/15943https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-gpvw-75h5-3wvxhttps://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-gpvw-75h5-3wvx
2026-07-10
Published