Out-of-bounds Read in Nanomq
CVE-2026-34608
NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. Prior to version 0.24.10, in NanoMQ's webhook_inproc.c, the hook_work_cb() function processes nng messages by parsing the message body with cJSON_Parse(body). The body i…
Vulnerability class: Buffer Overflow
EPSS: 0.001 (24.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Nanomq — versions < 0.24.10
Weakness classification (CWE)
References
- https://github.com/nanomq/nanomq/security/advisories/GHSA-8p57-jxj9-3qq3 (x_refsource_CONFIRM)
- https://github.com/nanomq/nanomq/commit/9499a4b2c47998a6aadb69238c18b9e6771b1691 (x_refsource_MISC)
- https://github.com/nanomq/nanomq/releases/tag/0.24.10 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-34608?
- CVE-2026-34608 is a medium-severity vulnerability in Nanomq, classified under Out-of-bounds Read. CVSS score: 4.9/10. Published 2026-04-02.
- How severe is CVE-2026-34608?
- Medium severity. CVSS v3 base score is 4.9 out of 10.