PT-2026-23067 · Nanomq · Nanomq

Jaylin Yu · Published 2026-03-04 · Updated 2026-03-05 · CVE-2026-22040

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions NanoMQ versions prior to 0.24.6

Description NanoMQ MQTT Broker, an Edge Messaging Platform, is susceptible to a heap memory corruption issue in version 0.24.6. This occurs when a specific traffic pattern is generated, combining high-frequency publishes with rapid reconnect/kick-out actions using the same ClientID and substantial subscribe/unsubscribe fluctuations. This pattern reliably triggers a crash in the Broker process, resulting in immediate termination via SIGABRT due to an invalid pointer error during a free() operation.

Recommendations Update NanoMQ to a version newer than 0.24.6. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

CVE-2026-22040

GHSA-V57Q-W88M-424R

Affected Products

Nanomq

References · 7

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22040.json · Exploit
• https://github.com/nanomq/nanomq/security/advisories/GHSA-v57q-w88m-424r · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-22040 · Security Note
• https://osv.dev/vulnerability/CVE-2026-22040 · Vendor Advisory
• https://twitter.com/infoflowcloud/status/2029325038361382970 · Twitter Post
• https://twitter.com/CVEnew/status/2029323814052806698 · Twitter Post
• https://t.me/CVEtracker/46375 · Telegram Post