GHSA-hf6x-8p5f-cgmf

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    GHSA-hf6x-8p5f-cgmf

    Published: 1 Jul 2026Last Modified: 10 Sept 2026

    Summary: Apache HttpComponents Core HTTP/1 header parsing can cause memory-exhaustion denial of service

    Details: Uncontrolled Resource Consumption vulnerability in the HTTP/1.1 message parser in Apache HttpComponents Core (5.4.2 and earlier, 5.5-beta1 and earlier) allows a remote attacker to cause a denial of service through memory exhaustion by sending messages with excessive number of headers / excessive header length

    References: https://nvd.nist.gov/vuln/detail/CVE-2026-54399, https://github.com/apache/httpcomponents-core/commit/d96a00fec9b2e19f8005e35681df5f6cd6e21a9e, https://github.com/apache/httpcomponents-core/commit/fdc53a32fe0fccf098cc67e71cd125e447c759ed, https://github.com/apache/httpcomponents-core, https://lists.apache.org/thread/zmxh1pl2zohov5ntdh4lt85gfrlchgpy, http://www.openwall.com/lists/oss-security/2026/07/01/4

    Affected packages

    Package

    Name: org.apache.httpcomponents.core5:httpcore5

    Purl: pkg:maven/org.apache.httpcomponents.core5/httpcore5

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -5.4.3

    Affected versions

    5.0
    5.0.1
    5.0.2
    5.0.3
    5.0.4

    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
    GHSA-hf6x-8p5f-cgmf | CVE-DB