Hyper

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    Products: 5
    Vulnerabilities: 14
    Known Exploited: 0
    3
    Critical Level Threats
    4
    High Level Threats
    6
    Medium Level Threats
    1
    Low Level Threats

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    Vulnerabilities

    CVE-2025-57804

    h2 allows HTTP Request Smuggling due to illegal characters in headers

    Last Modified: Apr 15, 2026
    Published: Aug 25, 2025

    CVE-2024-23741

    An issue in Hyper on macOS version 3.4.1 and before, allows remote attackers to execute arbitrary code via the RunAsNode and enableNodeClilnspectArguments settings.

    Last Modified: Jun 03, 2025
    Published: Jan 28, 2024

    CVE-2023-26964

    An issue was discovered in hyper v0.13.7. h2-0.2.4 Stream stacking occurs when the H2 component processes HTTP2 RST_STREAM frames. As a result, the memory and CPU usage are high which can lead to a Denial of Service (DoS).

    Last Modified: Feb 11, 2025
    Published: Apr 11, 2023

    CVE-2022-31394

    Hyperium Hyper before 0.14.19 does not allow for customization of the max_header_list_size method in the H2 third-party software, allowing attackers to perform HTTP2 attacks.

    Last Modified: Mar 17, 2025
    Published: Feb 21, 2023

    CVE-2021-32715

    Lenient Parsing of Content-Length Header When Prefixed with Plus Sign

    Last Modified: Nov 21, 2024
    Published: Jul 07, 2021
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