CVEvulnerability
CVE-2026-21888
7.5 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-03-11
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-125
Description
NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. MQTT v5 Variable Byte Integer parsing out-of-bounds: get_var_integer() accepts 5-byte varints without bounds checks; reliably triggers OOB read / crash when built with ASan. This affects 0.24.6 and earlier.
Affected configurations
• emqx nanomq (<= 0.24.6)
Related
Weakness · CWE (1)
- CWE-125 Out-of-bounds Read weakness
References
- https://github.com/nanomq/nanomq/issues/2192 Issue Tracking
- https://github.com/nanomq/nanomq/security/advisories/GHSA-cggc-6m7w-j7x5 Exploit, Vendor Advisory