CVE-2026-44640

Summary

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.

Affected Software

Weaknesses

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

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

Additional References

• https://github.com/nanomq/nanomq/security/advisories/GHSA-9fgw-v323-jmjj

References

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

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