CVEvulnerability

CVE-2026-67415

5.9 MEDIUM Published 2026-09-25 Modified 2026-10-16 Official page ↗
Status
Analyzed
Published
2026-09-25
Last modified
2026-10-16
Assigner
[email protected]
CVSS 4.0 ([email protected])
5.9 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/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
CVSS 3.1 ([email protected])
4.9 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-400

Description

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.

Affected configurations

• broadcom rabbitmq server (>= 4.2.0 < 4.2.9) • broadcom rabbitmq server (>= 4.3.0 < 4.3.3)

Related

Weakness · CWE (1)

  • CWE-400 Uncontrolled Resource Consumption weakness

References