CVE-2026-32135
highNanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform.
Vendor / product: Emqx — nanomq
NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. Versions prior to 0.24.11 have a remotely triggerable heap buffer overflow in the `uri_param_parse` function of NanoMQ's REST API. The vulnerability occurs due to an off-by-one error when allocating memory for query parameter keys and values, allowing an attacker to write a null byte beyond the allocated buffer. This can be triggered via a crafted HTTP request. Version 0.24.11 patches the issue.
CVSS
7.5
7.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-04-20 20:16
Modified: 2026-11-11 23:10
NVD status: Analyzed
Last synced 3 hours ago
Verified against the source API 2026-11-11 23:12 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
emqx / nanomq <0.24.11
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Patch / mitigation: https://github.com/nanomq/nanomq/commit/69a97b3b39cc218f044f1c8896f4d3d8757bb394
References
- https://github.com/nanomq/nanomq/commit/69a97b3b39cc218f044f1c8896f4d3d8757bb394 security-advisories@github.com
- https://github.com/nanomq/nanomq/issues/2247 security-advisories@github.com
- https://github.com/nanomq/nanomq/security/advisories/GHSA-6w96-9qw7-m599 security-advisories@github.com
Data sources
NVD CVE API 2.0 — fetched 2026-11-11 23:12 UTC · record ↗