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OpenAdvisories
High ELSA-2026-21756 2 CVEs

Important: flatpak security update (Oracle Linux 8)

Published May 28, 2026 · Updated May 28, 2026

Summary

[1.12.9-4]
- Fix arbitrary code execution via crafted symlinks in sandbox-expose options
Resolves: RHEL-165633
- Fix arbitrary file deletion on host via improper cache file path validation
Resolves: RHEL-170160

Fixed packages 5

ReleasePackageFixed in
Oracle Linux · 8 flatpak 0:1.12.9-4.el8_10
Oracle Linux · 8 flatpak-devel 0:1.12.9-4.el8_10
Oracle Linux · 8 flatpak-libs 0:1.12.9-4.el8_10
Oracle Linux · 8 flatpak-selinux 0:1.12.9-4.el8_10
Oracle Linux · 8 flatpak-session-helper 0:1.12.9-4.el8_10

Vulnerabilities 2

  • Critical 9.3

    Flatpak has a complete sandbox escape leading to host file access and code execution in the host context

    Flatpak is a Linux application sandboxing and distribution framework. Prior to 1.16.4, the Flatpak portal accepts paths in the sandbox-expose options which can be app-controlled symlinks pointing at arbitrary paths. Flatpak run mounts the resolved host path i…

  • High 8.7

    Flatpak affected by arbitrary file deletion on the host filesystem

    Flatpak is a Linux application sandboxing and distribution framework. Prior to 1.16.4, the caching for ld.so removes outdated cache files without properly checking that the app controlled path to the outdated cache is in the cache directory. This allows Flatp…