CVE-2026-44640 MEDIUM

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

Vendor Nanomq
Product nanomq
Weakness CWE-843
Published May 29, 2026
Last update May 29, 2026
View on NVD All CVEs

CVSS base score

4.5/10
Attack vector Local
Attack complexity High
Privileges required None
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 29, 2026 CVE published
May 29, 2026 Record updated