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    CVE-2026-97025

    Flatpak writes the OCI repository authentication token with world-readable permissions (0644) in the system-helper's cache directory, allowing other local users on a multi-user system to read the token and impersonate the authenticated user against the OCI repository. Only OCI-based sources (e.g. as used by Fedora) are affected; libostree-based sources such as Flathub are not.

    Published:Sep 28, 2026
    Last Modified:Sep 29, 2026
    EPS:Sep 28, 2026
    EPSS Score:0.00125
    CVSS Score:3.2

    Affected Products

    Vendor
    Flatpak
    Product
    Flatpak
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-92162 (CVSS 7.2) — Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Prior to …
    CVE-2026-97027 (CVSS 3.6) — Flatpak passes through arbitrary vendor-extension keys unmodified when exporting an application's Desktop Entr…
    CVE-2026-97029 (CVSS 5.7) — Flatpak's process ID namespace separation does not prevent a sandboxed app's kill(0, signal) or killpg(0, sign…
    CVE-2026-97024 (CVSS 7.1) — A path traversal vulnerability in Flatpak's handling of the files/etc directory during app deployment allows a…
    CVE-2026-97023 (CVSS 7.1) — A path traversal vulnerability in Flatpak's handling of the export/bin directory during app deployment allows …
    CVE-2026-97026 (CVSS 3.9) — Flatpak creates temporary child repository directories under the user cache with world-writable permissions (0…
    CVE-2026-96284 (CVSS 2.5) — A malicious user can get read-access to files in the flatpak-system-helper context if a system OCI repository …
    CVE-2026-96282 (CVSS 3.1) — A malicious Flatpak extension can probe the host filesystem to determine what files and directories exist at a…
    CVE-2026-96283 (CVSS 3.3) — By calling org.freedesktop.Flatpak.SystemHelper.CancelPull on another user's pull, the pull is not actually ca…
    CVE-2026-96281 (CVSS 6.2) — On a multi-user system, a user with an active local login session could downgrade a system-wide Flatpak app to…

    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