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    CVE-2026-6042

    A security flaw has been discovered in musl libc up to 1.2.6. Affected is the function iconv of the file src/locale/iconv.c of the component GB18030 4-byte Decoder. Performing a manipulation results in inefficient algorithmic complexity. The attack must be initiated from a local position. To fix this issue, it is recommended to deploy a patch.

    Published:Apr 10, 2026
    Last Modified:Apr 24, 2026
    EPS:Apr 10, 2026
    EPSS Score:0.00014
    CVSS Score:3.3

    Affected Products

    Vendor
    Musl
    Product
    Libc

    Exploits

    https://github.com/jensnesten/CVE-2026-6042-PoC

    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