Out-of-bounds Read Affecting nanomq/NanoNNG package, versions [,0.24.13)
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-18185994
- published22 Jul 2026
- disclosed20 Jul 2026
- creditUnknown
Introduced: 20 Jul 2026
CVE-2026-35217 (opens in a new tab)How to fix?
Upgrade nanomq/NanoNNG to version 0.24.13 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Read in the SUBSCRIBE process. An attacker can cause the broker to accept malformed packets and perform an out-of-bounds read by sending specially crafted MQTT v5 SUBSCRIBE packets that omit the required Subscription Options field. This can lead to the installation of invalid subscriptions and may result in a heap-buffer-overflow if the packet is constructed to cross the heap allocation boundary.