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    CVE-2023-34054

    In Reactor Netty HTTP Server, versions 1.1.x prior to 1.1.13 and versions 1.0.x prior to 1.0.39, it is possible for a user to provide specially crafted HTTP requests that may cause a denial-of-service (DoS) condition. Specifically, an application is vulnerable if Reactor Netty HTTP Server built-in integration with Micrometer is enabled.

    Published:Nov 28, 2023
    Last Modified:Sep 4, 2026
    EPS:Nov 28, 2023
    EPSS Score:0.00914
    CVSS Score:5.3

    Affected Products

    Vendor
    Broadcom
    Product
    Reactor Netty

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    CVE-2026-47843 (CVSS 3.7) — In specific scenarios involving multiple clients with different DNS resolver configurations, Reactor Netty may…
    CVE-2023-34062 (CVSS 7.5) — In Reactor Netty HTTP Server, versions 1.1.x prior to 1.1.13 and versions 1.0.x prior to 1.0.39, a malicious u…
    CVE-2022-31684 (CVSS 4.3) — Reactor Netty HTTP Server, in versions 1.0.11 - 1.0.23, may log request headers in some cases of invalid HTTP …
    CVE-2020-5403 (CVSS 7.5) — Reactor Netty HttpServer, versions 0.9.3 and 0.9.4, is exposed to a URISyntaxException that causes the connect…
    CVE-2020-5404 (CVSS 5.9) — The HttpClient from Reactor Netty, versions 0.9.x prior to 0.9.5, and versions 0.8.x prior to 0.8.16, may be u…
    CVE-2019-11284 (CVSS 8.6) — Pivotal Reactor Netty, versions prior to 0.8.11, passes headers through redirects, including authorization one…

    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