EMQ EMQX up to 6.2.0 Plugin Install unrestricted upload

Summaryinfo

A vulnerability identified as problematic has been detected in EMQ EMQX up to 6.2.0. This vulnerability affects unknown code of the component Plugin Install. Performing a manipulation results in unrestricted upload. This vulnerability is cataloged as CVE-2026-44725. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as problematic has been found in EMQ EMQX up to 6.2.0. This affects some unknown functionality of the component Plugin Install. The manipulation with an unknown input leads to a unrestricted upload vulnerability. CWE is classifying the issue as CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

EMQX is a scalable and reliable MQTT broker for AI, IoT, IIoT, and connected vehicles. Prior to versions 5.8.11, 5.9.3, 5.10.4, 6.0.3, 6.1.2, and 6.2.1, the plugin-install REST API and dashboard upload accepted stale grants created with emqx ctl plugins allow because there was no five-minute grant lifetime or SHA-256 package binding. An attacker with a compromised dashboard administrator credential or API key with plugin-install permission who finds a stale allowed name and version can upload attacker-controlled bytes under the allowed .tar.gz filename through POST /api/v5/plugins/install or the dashboard plugin upload. The broker then installs and runs attacker-controlled Erlang code with the privileges of the EMQX process. This issue is fixed in versions 5.8.11, 5.9.3, 5.10.4, 6.0.3, 6.1.2, and 6.2.1.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-44725 since 05/07/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Additional levels of successful authentication are needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1608.002 according to MITRE ATT&CK.

Upgrading to version 5.8.11, 5.9.3, 5.10.4, 6.0.3, 6.1.2 or 6.2.1 eliminates this vulnerability.

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Productinfo

Vendor

• EMQ

Name

• EMQX

Version

• 5.8.0
• 5.8.1
• 5.8.2
• 5.8.3
• 5.8.4
• 5.8.5
• 5.8.6
• 5.8.7
• 5.8.8
• 5.8.9
• 5.8.10
• 5.9.0
• 5.9.1
• 5.9.2
• 5.10.0
• 5.10.1
• 5.10.2
• 5.10.3
• 6.0
• 6.0.0
• 6.0.1
• 6.0.2
• 6.1
• 6.1.0
• 6.1.1
• 6.2.0

CPE 2.3info

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CPE 2.2info

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Entryinfo

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