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    CVE-2026-119137

    Wasmtime 42.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a stack overflow vulnerability that allows guests to crash the host through recursive type drops. Guests can define a long chain of recursive types so that removing the top-level type triggers unbounded recursive drops, exhausting the host stack.

    Published:Oct 29, 2026
    Last Modified:Oct 29, 2026
    EPS:Oct 29, 2026
    EPSS Score:0.00399
    CVSS Score:5.3

    Affected Products

    Vendor
    Bytecodealliance
    Product
    Wasmtime

    Exploits

    No exploit reference

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    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