OCTOBER 13, 2026
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Case File

CVE-2026-67218

LOW · CVSS 2.1 EPSS 0.34% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-23 · Last synced 2026-10-13

CyberRota Analysis

AI-Generated

RabbitMQ versions prior to 4.0.22, 4.1.11, 4.2.6, and 4.3.0 are vulnerable due to a flaw in the HTTP API that allows users with management tag and vhost access to create super-streams without the necessary configure permissions. This oversight can lead to privilege escalation, enabling unauthorized users to create persistent cluster-wide resources. Organizations using affected versions should prioritize upgrading to the patched releases to mitigate this risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

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CVE
CVE-2026-67218
Severity
LOW
CVSS
2.1
EPSS
0.34%
Exchange

Original NVD Description

RabbitMQ is a messaging and streaming broker. Prior to versions 4.0.22, 4.1.11, 4.2.6, and 4.3.0, accept_content/2 at line 56 calls rabbit_stream_manager:create_super_stream/... directly after is_authorized (which only checks the management tag + vhost access via is_authorized_vhost). The stream-protocol equivalent (rabbit_stream_reader.erl create_super_stream handler) calls rabbit_stream_utils:check_super_stream_management_permitted/4 which enforces configure on the exchange and each partition queue. The HTTP handler omits this call entirely. A user with management tag and vhost access , but no configure permission on any resource , can create super-streams (an exchange + N partition stream queues + bindings) via the HTTP API. The native stream-protocol path enforces configure on each resource; the HTTP path does not, creating a privilege escalation from 'can view' to 'can create persistent cluster-wide resources.' Preconditions include rabbitmq_stream_management plugin enabled management tag + vhost access (no resource permissions needed). This issue is fixed in versions 4.0.22, 4.1.11, 4.2.6, and 4.3.0.