CVE-2018-6651

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    CVE-2018-6651

    Published: 5 Feb 2018Last Modified: 10 Mar 2026

    Summary:

    Details: In the uncurl_ws_accept function in uncurl.c in uncurl before 0.07, as used in Parsec before 140-3, insufficient Origin header validation (accepting an arbitrary substring match) for WebSocket API requests allows remote attackers to bypass intended access restrictions. In Parsec, this means full control over the victim's computer.

    References: https://gist.github.com/Zenexer/ac7601c0e367d876353137e5099b18a7, , https://github.com/chrisd1100/uncurl/releases/tag/0.07, https://github.com/chrisd1100/uncurl/commit/448cd13e7b18c83855d706c564341ddd1e38e769

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    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