CVE-2026-57215
Prior to 3.13.15, 4.0.20, 4.1.11, and 4.2.6, RabbitMQ allows foreign bindings to amq.rabbitmq.reply-to destinations because volatile direct-reply-to queues can be accepted at bind and route time but are missing from Khepri-backed deletion checks,…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.65%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
RabbitMQ is a messaging and streaming broker. Prior to 3.13.15, 4.0.20, 4.1.11, and 4.2.6, RabbitMQ allows foreign bindings to amq.rabbitmq.reply-to destinations because volatile direct-reply-to queues can be accepted at bind and route time but are missing from Khepri-backed deletion checks, leaving persistent route entries after unbind. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.
- CVSS 4.0
- 7.0 HIGHCVSS:4.0/AV:N/AC:H/AT:N/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/M
- EPSS
- 0.65% probability · 49th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-863
- Affected
- broadcom/rabbitmq server
- Source
- security-advisories@github.com
References
- https://github.com/rabbitmq/rabbitmq-server/commit/9055500d10ca7629dd2b051c6dc7a4b0bb8f6734Patch
- https://github.com/rabbitmq/rabbitmq-server/commit/c84f3c880e0f22b49c01237cf8f86e176eeadc72Patch
- https://github.com/rabbitmq/rabbitmq-server/pull/15935Issue Tracking, Patch
- https://github.com/rabbitmq/rabbitmq-server/pull/15938Issue Tracking, Patch
- https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6Release Notes
- https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-5cq3-v9jx-p3x3Exploit, Vendor Advisory
- https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-5cq3-v9jx-p3x3Exploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.