DEBIAN-CVE-2026-118688

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    DEBIAN-CVE-2026-118688

    Published: 28 Oct 2026Last Modified: 5 Nov 2026
    Upstream:
    CVE-2026-118688

    Summary:

    Details: wasmtime-wasi in Wasmtime before 36.0.18, 37.0.0 before 48.0.6, and 49.0.0 before 49.0.3 re-appends a trailing slash to rename source paths, causing renameat on macOS and FreeBSD hosts to follow directory symlinks. A guest with sandbox write access can rename a relative symlink such as "up/" to move host directories into its sandbox and read or write them.

    References: https://security-tracker.debian.org/tracker/CVE-2026-118688

    Affected packages

    Package

    Name: rust-wasmtime

    Purl: pkg:deb/debian/rust-wasmtime?arch=source&distro=trixie

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    26.0.1+dfsg-10
    26.0.1+dfsg-3
    26.0.1+dfsg-4
    26.0.1+dfsg-5
    26.0.1+dfsg-6
    26.0.1+dfsg-7
    26.0.1+dfsg-8
    26.0.1+dfsg-9

    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
    DEBIAN-CVE-2026-118688 | CVE-DB