CVE-2026-44640CWE-843

NanoMQ: QUIC Dialer Close Type Confusion

Medium · published May 29, 2026

CVSS v3.1
4.5
EPSS
0%
Percentile
2.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00131 · 2.4th percentile
Weakness
CWE-843 · Access of Resource Using Incompatible Type ('Type Confusion')
Published
2026-05-29T19:28Z
EPSS history
Timeline
  • 29 MAY 19:28Z
    NanoMQ: QUIC Dialer Close Type Confusion
    cvelistv5