CVE-2026-44640 | BDVDB-2026-336567 Detail

nanomqnanomq

Description#

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.

Impact#

Per CVSS v3.1: confidentiality impact low, integrity impact low, availability impact low. Attack vector: local.

Weaknesses#

CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')

References#

Exploit#

No public exploit known

History#

Version 12026-05-29Record published in the CVE List.

Published

Published: 2026-05-29
Last modified: 2026-05-29

Vendor information

Vendor: nanomq
Product: nanomq

All nanomq vulnerabilities

Score

4.5 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 0.7.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Type Confusion

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 0.24.14
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

4.5 Medium

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

Metric breakdown
Attack Vector	Local
Attack Complexity	High
Privileges Required	None
User Interaction	Required
Scope	Unchanged
Confidentiality	Low
Integrity	Low
Availability	Low

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).