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Flatpak · weakness class

File and Path Handling

10 CVEs

Every dot is a CVE in what this vendor ships; the named ones are the most at risk.

Every one of the 10 is a mark on the map. Named now: 1 to 10, most at risk first.

  1. flatpak-builder can access files outside the build directory.CVE-2022-21682flatpak · CVSS 7.7 · 1.8% likely

    CWE-22

  2. Flatpak has a complete sandbox escape leading to host file access and code execution in the host contextCVE-2026-34078flatpak · CVSS 9 · 1.7% likely

    CWE-61

  3. XDG Desktop Portal: Arbitrary file access via SaveFiles "files" option path traversalCVE-2026-55888flatpak · CVSS 8.8 · 0.5% likely

    CWE-22

  4. Flatpak affected by arbitrary file deletion on the host filesystemCVE-2026-34079flatpak · CVSS 7.5 · 0.3% likely

    CWE-22

  5. flatpak-builder has a path traversal leading to arbitrary file read on host when installing licence filesCVE-2026-39977flatpak · CVSS 7.1 · 0.3% likely

    CWE-22

  6. Flatpak vulnerable to path traversal via unvalidated "arch" parameter in DeployAppstreamCVE-2026-92162flatpak · CVSS 7.2 · 0.2% likely

    CWE-22

  7. In Flatpak before 1.18.1, a malicious sandboxed app can obtain arbitrary read and write access to files on the host, which can be escalated to arbitrary code execution on the host…CVE-2026-90616Flatpak · CVSS 7.4 · 0.2% likely

    CWE-61

  8. Flatpak xdg-desktop-portal before 1.20.4 and 1.21.x before 1.21.1 allows any Flatpak app to trash any file in the host context via a symlink attack on g_file_trash.CVE-2026-40354Flatpak · CVSS 2.9 · 0.1% likely

    CWE-61

  9. In Flatpak before 1.18.1, a malicious sandboxed app can replace ~/.var/app/$appid/.ld.so with a symlink, causing regenerate_ld_cache to write files at an arbitrary location. The f…CVE-2026-96807Flatpak · CVSS 4 · 0.1% likely

    CWE-61

  10. In Flatpak before 1.18.1, the revokefs writer, used by the flatpak-system-helper to receive repository data from unprivileged callers, validated file paths by rejecting literal ..…CVE-2026-96808Flatpak · CVSS 7.4 · 0.1% likely

    CWE-61

exploited in the wildcheck availableringed, named or not: CyberSIXT has reported on it

Zoom in on the map and the dots under the middle of it are named where they are.

Data as of 2026-11-15. CVE List through 2026-11-15 · EPSS of 2026-11-14 · CISA KEV checked 2026-11-15. Sources: the CVE List, CISA KEV, EPSS, NVD, nuclei templates and public bug bounty data.