VulnerabilityDeferred

CVE-2026-44640

This type confusion causes invalid object interpretation and leads to close-path hang/crash behavior.

MEDIUM 4.5EPSS 0.10%

Does this matter?

Lower severity and a low EPSS score (0.10%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1: 4.5 MEDIUMCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
EPSS: 0.10% probability · 1th percentile
CISA KEV: Not listed
Weakness: CWE-843
Source: security-advisories@github.com

References

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.