Medium 4.5Published May 29, 2026

CVE-2026-44640NanoMQ: QUIC Dialer Close Type Confusion

Updated under an hour ago (Oct 26, 2026, 4:23 PM ET)

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Exploited in the last 30 days

NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. Prior to 0.24.14, aio->prov_data is stored as nni_quic_conn* during dialing, but read as ex_quic_conn* during dialer close. This type confusion causes invalid object interpretation and leads to close-path hang/crash behavior. This vulnerability is fixed in 0.24.14.

CVSS: 4.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
Weakness (CWE): CWE-843
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: May 29, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

nanomq nanomq nanomq:nanomq (from the name)	before 0.24.14	CNA record

References

References

https://github.com/nanomq/nanomq/security/advisories/GHSA-9fgw-v323-jmjj	x-refsource-confirm
https://github.com/nanomq/nanomq/releases/tag/0.24.14	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.