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    CVE-2024-53271

    Envoy is a cloud-native high-performance edge/middle/service proxy. In affected versions envoy does not properly handle http 1.1 non-101 1xx responses. This can lead to downstream failures in networked devices. This issue has been addressed in versions 1.31.5 and 1.32.3. Users are advised to upgrade. There are no known workarounds for this issue.

    Published:Dec 18, 2024
    Last Modified:Sep 4, 2025
    EPS:Dec 18, 2024
    EPSS Score:0.00004
    CVSS Score:7.1

    Affected Products

    Vendor
    Envoyproxy
    Product
    Envoy

    Exploits

    https://github.com/envoyproxy/envoy/security/advisories/GHSA-rmm5-h2wv-mg4fhttps://github.com/envoyproxy/envoy/security/advisories/GHSA-rmm5-h2wv-mg4f

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    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