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Solution
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Workaround
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Fri, 29 May 2026 16:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Rabbitmq
Rabbitmq rabbitmq-server |
|
| Vendors & Products |
Rabbitmq
Rabbitmq rabbitmq-server |
Thu, 28 May 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Wed, 27 May 2026 15:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | RabbitMQ is a messaging and streaming broker. From 4.2.0 to before 4.2.4, RabbitMQ's MQTT plugin allows for topic-level authorization using regular expressions with variable substitution. Administrators can create patterns such as ^{client_id}-sensors$ to restrict user access to topics that include their client ID. However, the client_id is provided by the user in the MQTT CONNECT packet and is inserted into the regex pattern without escaping special regex characters. This flaw enables an authenticated MQTT user to inject regex operators to bypass authorization. This vulnerability is fixed in 4.2.4 and 4.3.0. | |
| Title | RabbitMQ MQTT Topic Permission Authorization Bypass | |
| Weaknesses | CWE-863 | |
| References |
| |
| Metrics |
cvssV4_0
|
Projects
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-05-28T14:31:11.075Z
Reserved: 2026-05-07T21:21:48.352Z
Link: CVE-2026-44838
Updated: 2026-05-28T14:31:07.196Z
Status : Awaiting Analysis
Published: 2026-05-27T15:16:28.743
Modified: 2026-05-29T15:06:44.207
Link: CVE-2026-44838
No data.
OpenCVE Enrichment
Updated: 2026-05-29T15:50:37Z