Use After Free Affecting nanomq/NanoNNG package, versions [,0.24.3)
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Test your applications- Snyk IDSNYK-UNMANAGED-NANOMQNANONNG-14123068
- published27 Nov 2025
- disclosed25 Nov 2025
- creditUnknown
Introduced: 25 Nov 2025
NewCVE-2025-65953 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade nanomq/NanoNNG to version 0.24.3 or higher.
Overview
Affected versions of this package are vulnerable to Use After Free via improper resource management in the broker_tcp.c process. An attacker can cause memory corruption or a denial of service by sending specially crafted, malformed MQTTV5 retain message traffic that triggers premature cleanup of message and pipe structures.
Note: The vulnerability was initially reported for nanomq/nanomq, which relies on nanomq/NanoNNG.