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    CVE-2026-32135

    NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. Versions prior to 0.24.11 have a remotely triggerable heap buffer overflow in the `uri_param_parse` function of NanoMQ's REST API. The vulnerability occurs due to an off-by-one error when allocating memory for query parameter keys and values, allowing an attacker to write a null byte beyond the allocated buffer. This can be triggered via a crafted HTTP request. Version 0.24.11 patches the issue.

    Published:Apr 20, 2026
    Last Modified:Apr 22, 2026
    EPS:Apr 20, 2026
    EPSS Score:0.00055
    CVSS Score:7.5

    Affected Products

    Vendor
    Emqx
    Product
    Nanomq
    Vendor
    Nanomq
    Product
    Nanomq

    Exploits

    https://github.com/nanomq/nanomq/security/advisories/GHSA-6w96-9qw7-m599

    Common Weakness Enumeration

    CWE-122 Heap-based Buffer Overflow

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

    Related CVEs

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    CVE-2026-32696 (CVSS 3.1) — NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. In NanoMQ version 0.24.6, after enabling…
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    CVE-2026-21888 (CVSS 7.5) — NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. MQTT v5 Variable Byte Integer parsing ou…
    CVE-2026-22040 (CVSS 5.3) — NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. In version 0.24.6, by generating a combi…
    CVE-2025-68699 (CVSS 6.5) — NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. In version 0.24.6, NanoMQ has a protocol…
    CVE-2024-48077 (CVSS 7.5) — NanoMQ v0.22.7 is vulnerable to Denial of Service (DoS) due to improper resource throttling. A crafted sequenc…
    CVE-2025-66023 (CVSS 6.9) — NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. Versions prior to 0.24.5 have a Heap-Use…
    CVE-2025-59946 (CVSS 7.5) — NanoMQ MQTT Broker (NanoMQ) is an Edge Messaging Platform. Prior to version 0.24.2, there is a classical data …

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High