Use After Free Affecting nanomq/NanoNNG package, versions [,0.24.5)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-NANOMQNANONNG-14833162
- published1 Jan 2026
- disclosed1 Jan 2026
- creditUnknown
Introduced: 1 Jan 2026
CVE-2025-66023 (opens in a new tab)How to fix?
Upgrade nanomq/NanoNNG to version 0.24.5 or higher.
Overview
Affected versions of this package are vulnerable to Use After Free in the MQTT bridge client process. An attacker can cause a crash or potentially corrupt memory by acting as a malicious remote broker that accepts a connection and immediately sends a malformed packet sequence.