Security update for flatpak

Announcement ID:	SUSE-SU-2026:1541-1
Release Date:	2026-04-22T07:22:36Z
Rating:	important
References:	bsc#1261769 bsc#1261770
Cross-References:	CVE-2026-34078 CVE-2026-34079
CVSS scores:	CVE-2026-34078 ( SUSE ): 6.4 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H CVE-2026-34078 ( SUSE ): 8.2 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H CVE-2026-34078 ( NVD ): 9.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVE-2026-34079 ( SUSE ): 4.1 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N CVE-2026-34079 ( SUSE ): 6.7 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:L CVE-2026-34079 ( NVD ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVE-2026-34079 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVE-2026-34079 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected Products:	openSUSE Leap 15.5 SUSE Linux Enterprise High Performance Computing 15 SP5 SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 SUSE Linux Enterprise Server 15 SP5 SUSE Linux Enterprise Server 15 SP5 LTSS SUSE Linux Enterprise Server for SAP Applications 15 SP5

An update that solves two vulnerabilities can now be installed.

Description:

This update for flatpak fixes the following issues:

• CVE-2026-34078: improper processing of app-controlled symlinks by sandbox-expose can lead to sandbox escape, host file access and code execution in the host context (bsc#1261769).
• CVE-2026-34079: improper removal of outdated cache files allows for arbitrary file deletion on the host filesystem (bsc#1261770).

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

• openSUSE Leap 15.5
  zypper in -t patch SUSE-2026-1541=1
• SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
  zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-1541=1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
  zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-1541=1
• SUSE Linux Enterprise Server 15 SP5 LTSS
  zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-1541=1
• SUSE Linux Enterprise Server for SAP Applications 15 SP5
  zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-1541=1

Package List:

• openSUSE Leap 15.5 (aarch64 ppc64le s390x x86_64 i586)
  • libflatpak0-1.16.0-150500.3.18.1
  • flatpak-debuginfo-1.16.0-150500.3.18.1
  • flatpak-debugsource-1.16.0-150500.3.18.1
  • flatpak-devel-1.16.0-150500.3.18.1
  • flatpak-1.16.0-150500.3.18.1
  • libflatpak0-debuginfo-1.16.0-150500.3.18.1
  • typelib-1_0-Flatpak-1_0-1.16.0-150500.3.18.1
• openSUSE Leap 15.5 (noarch)
  • flatpak-zsh-completion-1.16.0-150500.3.18.1
  • flatpak-remote-flathub-1.16.0-150500.3.18.1
  • system-user-flatpak-1.16.0-150500.3.18.1
• SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64 x86_64)
  • libflatpak0-1.16.0-150500.3.18.1
  • flatpak-debuginfo-1.16.0-150500.3.18.1
  • flatpak-debugsource-1.16.0-150500.3.18.1
  • flatpak-devel-1.16.0-150500.3.18.1
  • flatpak-1.16.0-150500.3.18.1
  • libflatpak0-debuginfo-1.16.0-150500.3.18.1
  • typelib-1_0-Flatpak-1_0-1.16.0-150500.3.18.1
• SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (noarch)
  • flatpak-zsh-completion-1.16.0-150500.3.18.1
  • flatpak-remote-flathub-1.16.0-150500.3.18.1
  • system-user-flatpak-1.16.0-150500.3.18.1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64 x86_64)
  • libflatpak0-1.16.0-150500.3.18.1
  • flatpak-debuginfo-1.16.0-150500.3.18.1
  • flatpak-debugsource-1.16.0-150500.3.18.1
  • flatpak-devel-1.16.0-150500.3.18.1
  • flatpak-1.16.0-150500.3.18.1
  • libflatpak0-debuginfo-1.16.0-150500.3.18.1
  • typelib-1_0-Flatpak-1_0-1.16.0-150500.3.18.1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (noarch)
  • flatpak-zsh-completion-1.16.0-150500.3.18.1
  • flatpak-remote-flathub-1.16.0-150500.3.18.1
  • system-user-flatpak-1.16.0-150500.3.18.1
• SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64)
  • libflatpak0-1.16.0-150500.3.18.1
  • flatpak-debuginfo-1.16.0-150500.3.18.1
  • flatpak-debugsource-1.16.0-150500.3.18.1
  • flatpak-devel-1.16.0-150500.3.18.1
  • flatpak-1.16.0-150500.3.18.1
  • libflatpak0-debuginfo-1.16.0-150500.3.18.1
  • typelib-1_0-Flatpak-1_0-1.16.0-150500.3.18.1
• SUSE Linux Enterprise Server 15 SP5 LTSS (noarch)
  • flatpak-zsh-completion-1.16.0-150500.3.18.1
  • flatpak-remote-flathub-1.16.0-150500.3.18.1
  • system-user-flatpak-1.16.0-150500.3.18.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64)
  • libflatpak0-1.16.0-150500.3.18.1
  • flatpak-debuginfo-1.16.0-150500.3.18.1
  • flatpak-debugsource-1.16.0-150500.3.18.1
  • flatpak-devel-1.16.0-150500.3.18.1
  • flatpak-1.16.0-150500.3.18.1
  • libflatpak0-debuginfo-1.16.0-150500.3.18.1
  • typelib-1_0-Flatpak-1_0-1.16.0-150500.3.18.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP5 (noarch)
  • flatpak-zsh-completion-1.16.0-150500.3.18.1
  • flatpak-remote-flathub-1.16.0-150500.3.18.1
  • system-user-flatpak-1.16.0-150500.3.18.1

References:

• https://www.suse.com/security/cve/CVE-2026-34078.html
• https://www.suse.com/security/cve/CVE-2026-34079.html
• https://bugzilla.suse.com/show_bug.cgi?id=1261769
• https://bugzilla.suse.com/show_bug.cgi?id=1261770