RabbitMQ is a messaging and streaming broker. From 4.2.0 until 4.2.9 and 4.3.3, the Shovel parameter parser converted attacker-controlled runtime parameter values into non-garbage-collected Erlang atoms before bounding them or checking a fixed allowlist. Exploitation requires network access to the Management HTTP API, valid credentials with both the management and policymaker tags, permission to set Shovel runtime parameters on a vhost, and the rabbitmq_shovel and rabbitmq_shovel_management plugins to be enabled. The attacker can exhaust the node-wide atom table and deny service, and malicious parameters are stored durably and reparsed when workers start, so atom pressure can recur after restart without a live attacker connection. This issue is fixed in versions 4.2.9 and 4.3.3.
References
| Link | Resource |
|---|---|
| https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.9 | Release Notes |
| https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.3 | Release Notes |
| https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-8mpg-qw9r-m5cr | Vendor Advisory Exploit Mitigation |
| https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-8mpg-qw9r-m5cr | Vendor Advisory Exploit Mitigation |
Configurations
Configuration 1 (hide)
|
History
16 Oct 2026, 15:58
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 4.9 |
| CPE | cpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:* | |
| First Time |
Broadcom rabbitmq Server
Broadcom |
|
| References | () https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.9 - Release Notes | |
| References | () https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.3 - Release Notes | |
| References | () https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-8mpg-qw9r-m5cr - Vendor Advisory, Exploit, Mitigation |
25 Sep 2026, 20:17
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-8mpg-qw9r-m5cr - |
25 Sep 2026, 17:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-09-25 17:17
Updated : 2026-10-16 15:58
NVD link : CVE-2026-67415
Mitre link : CVE-2026-67415
CVE.ORG link : CVE-2026-67415
JSON object : View
Products Affected
broadcom
- rabbitmq_server
CWE
CWE-400
Uncontrolled Resource Consumption
