RHSA-2026:30901HighCVSS 9.0

Red Hat Security Advisory: flatpak security update

Published
June 29, 2026
Last Modified
November 5, 2026

🔗 CVE IDs covered (2)

CVE-2026-34078 →CVE-2026-34079 →

📋 Description

CVE-2026-34078 — flatpak: Flatpak: Arbitrary code execution via crafted symlinks in sandbox-expose options CVE-2026-34079 — flatpak: Flatpak: Arbitrary file deletion on host via improper cache file path validation

🎯 Affected products34

  • Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • flatpak-0:1.12.9-2.el8_4.src as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • flatpak-0:1.12.9-2.el8_4.src as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • flatpak-0:1.12.9-2.el8_4.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • flatpak-0:1.12.9-2.el8_4.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • flatpak-debuginfo-0:1.12.9-2.el8_4.i686 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • flatpak-debuginfo-0:1.12.9-2.el8_4.i686 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • flatpak-debuginfo-0:1.12.9-2.el8_4.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • flatpak-debuginfo-0:1.12.9-2.el8_4.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • flatpak-debugsource-0:1.12.9-2.el8_4.i686 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • flatpak-debugsource-0:1.12.9-2.el8_4.i686 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • flatpak-debugsource-0:1.12.9-2.el8_4.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • flatpak-debugsource-0:1.12.9-2.el8_4.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • flatpak-libs-0:1.12.9-2.el8_4.i686 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • flatpak-libs-0:1.12.9-2.el8_4.i686 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • flatpak-libs-0:1.12.9-2.el8_4.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • flatpak-libs-0:1.12.9-2.el8_4.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • flatpak-libs-debuginfo-0:1.12.9-2.el8_4.i686 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • flatpak-libs-debuginfo-0:1.12.9-2.el8_4.i686 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • flatpak-libs-debuginfo-0:1.12.9-2.el8_4.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • flatpak-libs-debuginfo-0:1.12.9-2.el8_4.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • flatpak-selinux-0:1.12.9-2.el8_4.noarch as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • flatpak-selinux-0:1.12.9-2.el8_4.noarch as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • flatpak-session-helper-0:1.12.9-2.el8_4.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • flatpak-session-helper-0:1.12.9-2.el8_4.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • flatpak-session-helper-debuginfo-0:1.12.9-2.el8_4.i686 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • flatpak-session-helper-debuginfo-0:1.12.9-2.el8_4.i686 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • flatpak-session-helper-debuginfo-0:1.12.9-2.el8_4.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • flatpak-session-helper-debuginfo-0:1.12.9-2.el8_4.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • +4 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

🔗 References (5)