HomeCVE-2026-21888

CVE-2026-21888

HIGH
7.5CVSS
Published: 2026-03-11
Updated: 2026-03-12
AI Analysis

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.

CVSS Metrics

Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
network
Complexity
low
Privileges
none
User Action
none
Scope
unchanged
Confidentiality
none
Integrity
none
Availability
high
Weaknesses
CWE-125

Metadata

Primary Vendor
UNKNOWN
Published
3/11/2026
Last Modified
3/12/2026
Source
NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

No affected products information available.

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CVE-CVE-2026-21888 | HIGH Severity | CVEDatabase.com | CVEDatabase.com