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SUSE Flatpak Important Code Execution and File Access Flaws 2026-1541-1

suse
Calendar Grey April 22, 2026
Dist Suse Esm H88
Critical update for flatpak addresses important security issues in SUSE, enhancing host system protection against exploits.
An update that solves two vulnerabilities can now be installed.

Summary

## 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 * CVE-2026-34079: improper removal of outdated cache files allows for arbitrary file deletion on the host filesystem (bsc#1261770).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

Topics%20covered

Topics Covered

security advisory SuSE important file access sandbox escape flatpak

References

* bsc#1261769

* bsc#1261770

Cross-

* 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

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:1541-1
Release Date: 2026-04-22T07:22:36Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE important file access sandbox escape flatpak

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