Security update for flatpak

Announcement ID:	SUSE-SU-2026:1511-1
Release Date:	2026-04-21T06:28:50Z
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 15.4 SUSE Linux Enterprise High Performance Computing 15 SP4 SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 SUSE Linux Enterprise Server 15 SP4 SUSE Linux Enterprise Server 15 SP4 LTSS SUSE Linux Enterprise Server for SAP Applications 15 SP4

An update that solves two vulnerabilities can now be installed.

Description:

This update for flatpak fixes the following issues:

• CVE-2026-34078: Arbitrary code execution via crafted symlinks in sandbox-expose options (bsc#1261769).
• CVE-2026-34079: Arbitrary file deletion on host via improper cache file path validation (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 15.4
  zypper in -t patch SUSE-2026-1511=1
• SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4
  zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-1511=1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP4
  zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-1511=1
• SUSE Linux Enterprise Server 15 SP4 LTSS
  zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-1511=1
• SUSE Linux Enterprise Server for SAP Applications 15 SP4
  zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-1511=1

Package List:

• openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64 i586)
  • flatpak-debuginfo-1.12.8-150400.3.12.1
  • flatpak-1.12.8-150400.3.12.1
  • typelib-1_0-Flatpak-1_0-1.12.8-150400.3.12.1
  • flatpak-zsh-completion-1.12.8-150400.3.12.1
  • libflatpak0-1.12.8-150400.3.12.1
  • libflatpak0-debuginfo-1.12.8-150400.3.12.1
  • system-user-flatpak-1.12.8-150400.3.12.1
  • flatpak-debugsource-1.12.8-150400.3.12.1
  • flatpak-devel-1.12.8-150400.3.12.1
• SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64 x86_64)
  • flatpak-debuginfo-1.12.8-150400.3.12.1
  • flatpak-1.12.8-150400.3.12.1
  • typelib-1_0-Flatpak-1_0-1.12.8-150400.3.12.1
  • flatpak-zsh-completion-1.12.8-150400.3.12.1
  • libflatpak0-1.12.8-150400.3.12.1
  • libflatpak0-debuginfo-1.12.8-150400.3.12.1
  • system-user-flatpak-1.12.8-150400.3.12.1
  • flatpak-debugsource-1.12.8-150400.3.12.1
  • flatpak-devel-1.12.8-150400.3.12.1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64 x86_64)
  • flatpak-debuginfo-1.12.8-150400.3.12.1
  • flatpak-1.12.8-150400.3.12.1
  • typelib-1_0-Flatpak-1_0-1.12.8-150400.3.12.1
  • flatpak-zsh-completion-1.12.8-150400.3.12.1
  • libflatpak0-1.12.8-150400.3.12.1
  • libflatpak0-debuginfo-1.12.8-150400.3.12.1
  • system-user-flatpak-1.12.8-150400.3.12.1
  • flatpak-debugsource-1.12.8-150400.3.12.1
  • flatpak-devel-1.12.8-150400.3.12.1
• SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64)
  • flatpak-debuginfo-1.12.8-150400.3.12.1
  • flatpak-1.12.8-150400.3.12.1
  • typelib-1_0-Flatpak-1_0-1.12.8-150400.3.12.1
  • flatpak-zsh-completion-1.12.8-150400.3.12.1
  • libflatpak0-1.12.8-150400.3.12.1
  • libflatpak0-debuginfo-1.12.8-150400.3.12.1
  • system-user-flatpak-1.12.8-150400.3.12.1
  • flatpak-debugsource-1.12.8-150400.3.12.1
  • flatpak-devel-1.12.8-150400.3.12.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64)
  • flatpak-debuginfo-1.12.8-150400.3.12.1
  • flatpak-1.12.8-150400.3.12.1
  • typelib-1_0-Flatpak-1_0-1.12.8-150400.3.12.1
  • flatpak-zsh-completion-1.12.8-150400.3.12.1
  • libflatpak0-1.12.8-150400.3.12.1
  • libflatpak0-debuginfo-1.12.8-150400.3.12.1
  • system-user-flatpak-1.12.8-150400.3.12.1
  • flatpak-debugsource-1.12.8-150400.3.12.1
  • flatpak-devel-1.12.8-150400.3.12.1

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