CVE-2026-44639

CVE Enrichment

CVSS: 3.7 LOW
EPSS: 0.44%
EPSS Percentile: 36.62%
CISA KEV: Not listed

Description

NanoMQ is an MQTT broker. Prior to 0.24.14, NanoMQ's MQTT v5 property decoder in nng/src/supplemental/mqtt/mqtt_codec.c uses property_append() to walk the entire linked list for each property added by decode_buf_properties(). A remote unauthenticated client can supply a PUBLISH or SUBSCRIBE packet containing many User Properties, causing O(N²) linked-list insertion and CPU work that makes the broker unresponsive; repeated packets can sustain the denial of service. This issue is fixed in version 0.24.14.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: security-advisories@github.com
Published: 19-Sep-2026 00:16
Last Modified: 19-Sep-2026 01:17
EPSS Date: 2026-10-11
CWE: CWE-407

CVSS Vector


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

References

Last enrichment sync: 12-Oct-2026 05:24
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (1)

GHSA-632h-h47v-g4x4 (OpenCode), CVE-2026-91765 (PHP), CVE-2026-96760 (Authlib), CVE-2026-42542, CVE-2026-44639 (TDengine), CVE-2026-86553, CVE-2026-86555, CVE-2026-86552, CVE-2026-86554 (ZTE SmartLife), Weekly Security Recap: Exploited Citrix NetScaler Flaw and Dozens of Vulnerabilities

CVE (135)

Vendors (1)

Products (2)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.