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    CVE-2026-3387

    A vulnerability has been found in wren-lang wren up to 0.4.0. Affected by this issue is the function getByteCountForArguments of the file src/vm/wren_compiler.c. Such manipulation leads to null pointer dereference. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

    Published:Mar 1, 2026
    Last Modified:Apr 17, 2026
    EPS:Mar 1, 2026
    EPSS Score:0.00023
    CVSS Score:3.3

    Affected Products

    Vendor
    Wren
    Product
    Wren
    Vendor
    Wren-lang
    Product
    Wren

    Exploits

    https://github.com/oneafter/0122/blob/main/i1220/reprohttps://github.com/wren-lang/wren/issues/1220

    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