RHSA-2026:23419HighCVSS 9.0

Red Hat Security Advisory: flatpak security update

Published
June 4, 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 products41

  • Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-0:1.12.7-5.el9_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-0:1.12.7-5.el9_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-0:1.12.7-5.el9_2.1.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-0:1.12.7-5.el9_2.1.src as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-0:1.12.7-5.el9_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-debuginfo-0:1.12.7-5.el9_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-debuginfo-0:1.12.7-5.el9_2.1.i686 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-debuginfo-0:1.12.7-5.el9_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-debuginfo-0:1.12.7-5.el9_2.1.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-debuginfo-0:1.12.7-5.el9_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-debugsource-0:1.12.7-5.el9_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-debugsource-0:1.12.7-5.el9_2.1.i686 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-debugsource-0:1.12.7-5.el9_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-debugsource-0:1.12.7-5.el9_2.1.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-debugsource-0:1.12.7-5.el9_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-libs-0:1.12.7-5.el9_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-libs-0:1.12.7-5.el9_2.1.i686 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-libs-0:1.12.7-5.el9_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-libs-0:1.12.7-5.el9_2.1.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-libs-0:1.12.7-5.el9_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-libs-debuginfo-0:1.12.7-5.el9_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-libs-debuginfo-0:1.12.7-5.el9_2.1.i686 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-libs-debuginfo-0:1.12.7-5.el9_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-libs-debuginfo-0:1.12.7-5.el9_2.1.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-libs-debuginfo-0:1.12.7-5.el9_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-selinux-0:1.12.7-5.el9_2.1.noarch as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-session-helper-0:1.12.7-5.el9_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-session-helper-0:1.12.7-5.el9_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • flatpak-session-helper-0:1.12.7-5.el9_2.1.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
  • +11 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)