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    CVE-2026-15791

    A crafted message in the BuildKit low-level build API can be used to remove the contents of the /tmp directory. The action that can normally be used to delete files inside the build container rootfs can escape into the real host temp directory.

    Published:Jul 21, 2026
    Last Modified:Jul 21, 2026
    EPS:Jul 21, 2026
    EPSS Score:
    CVSS Score:3.3

    Affected Products

    Vendor
    Moby
    Product
    Buildkit

    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