SUSE-SU-2026:4944-1: important: Security update for flatpak

SLE-SECURITY-UPDATES null at suse.de
Fri Oct 30 08:31:04 UTC 2026


# Security update for flatpak

Announcement ID: SUSE-SU-2026:4944-1  
Release Date: 2026-10-29T16:29:48Z  
Rating: important  
References:

  * bsc#1280236
  * bsc#1282514
  * bsc#1282515
  * bsc#1282516
  * bsc#1282518
  * bsc#1282519
  * bsc#1282520
  * bsc#1282523
  * bsc#1282524
  * jsc#PED-17048

  
Cross-References:

  * CVE-2026-90616
  * CVE-2026-92162
  * CVE-2026-96275
  * CVE-2026-96276
  * CVE-2026-96280
  * CVE-2026-96281
  * CVE-2026-96282
  * CVE-2026-96807
  * CVE-2026-96808

  
CVSS scores:

  * CVE-2026-90616 ( SUSE ):  9.3
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
  * CVE-2026-90616 ( SUSE ):  8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  * CVE-2026-90616 ( NVD ):  7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-92162 ( SUSE ):  6.8
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-92162 ( SUSE ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
  * CVE-2026-92162 ( NVD ):  7.2
    CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/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-2026-96275 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-96275 ( SUSE ):  8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2026-96275 ( NVD ):  8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2026-96276 ( SUSE ):  8.5
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-96276 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2026-96276 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
  * CVE-2026-96276 ( NVD ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-96280 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-96280 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2026-96280 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2026-96281 ( SUSE ):  4.8
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-96281 ( SUSE ):  3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
  * CVE-2026-96281 ( NVD ):  6.2 CVSS:3.1/AV:P/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
  * CVE-2026-96282 ( SUSE ):  6.8
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:L/SA:N
  * CVE-2026-96282 ( SUSE ):  7.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
  * CVE-2026-96282 ( NVD ):  3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
  * CVE-2026-96807 ( SUSE ):  4.8
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:L/SA:L
  * CVE-2026-96807 ( SUSE ):  5.2 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L
  * CVE-2026-96807 ( NVD ):  4.0 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
  * CVE-2026-96808 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-96808 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-96808 ( NVD ):  7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

  
Affected Products:

  * Desktop Applications Module 15-SP7
  * openSUSE Leap 15.6
  * SUSE Linux Enterprise Desktop 15 SP7
  * SUSE Linux Enterprise Real Time 15 SP7
  * SUSE Linux Enterprise Server 15 SP6
  * SUSE Linux Enterprise Server 15 SP6 LTSS
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7

  
  
An update that solves nine vulnerabilities and contains one feature can now be
installed.

## Description:

This update for flatpak fixes the following issues:

  * CVE-2026-90616: missing symlink protection allows a malicious sandboxed app
    to obtain arbitrary read and write access to files on the host
    (bsc#1280236).
  * CVE-2026-92162: path traversal via unvalidated `arch` parameter in
    `DeployAppstream` (bsc#1282514).
  * CVE-2026-96275: arbitrary write access as root via extra-data extraction
    (bsc#1282515).
  * CVE-2026-96276: arbitrary write in host context via `flatpak build-init`
    (bsc#1282516).
  * CVE-2026-96280: buffer overflow in OCI delta stream path names
    (bsc#1282518).
  * CVE-2026-96281: unprivileged active user can bypass anti-downgrade checks
    for system apps/runtimes (bsc#1282519).
  * CVE-2026-96282: extension metadata path traversal file existence oracle
    (bsc#1282520).
  * CVE-2026-96807: fixed-filename writes to arbitrary locations via symlink
    attack on `.ld.so` (bsc#1282523).
  * CVE-2026-96808: `revokefs` symlink path traversal allows local privilege
    escalation via commit tampering (bsc#1282524).

Changes for flatpak:

  * Update to version 1.16.6 (jsc#PED-17048):
  * Fix file descriptor leaks affecting Chromium-based browsers.
  * Fix installing extra-data without a runtime, including openh264.
  * Fix unusable sandbox-expose paths affecting Epiphany.
  * Fix installed tests and handling of file descriptor arguments.
  * Changes from version 1.16.5:
  * Fix regressions from the sandbox escape security fix affecting browsers,
    browser-based apps and Steam.
  * Expand test coverage of flatpak-run features used by the portal.
  * Changes from version 1.16.4:
  * Prevent arbitrary file reads in the system-helper context
    (GHSA-2fxp-43j9-pwvc).
  * Prevent orphaning cross-user pull operations (GHSA-89xm-3m96-w3jg).
  * Changes from version 1.16.3:
  * Be selective about mapping font-dirs.xml in flatpak build.
  * Changes from version 1.16.2:
  * Support reinstalling bundle installations and Intel Xe VA-API.
  * Add cancellation support for curl downloads.
  * Fix font configuration, mask and pin configuration reloads, unintended home
    directory access, flatpak kill, OCI support, memory leaks and crashes.
  * Changes from version 1.16.1:
  * Allow updating existing apps under parental controls by default.
  * Use instance IDs for systemd scopes and include /dev/udmabuf with
    --device=dri.
  * Speed up prune --dry-run and permission-reset.
  * Support TLS certificates in /etc/containers/certs.d for OCI.
  * Fix portal crashes, sandbox environment handling, accessibility bus
    discovery, error reporting and shell completion.
  * Update documentation and translations.

## 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:

  * SUSE Linux Enterprise Server for SAP Applications 15 SP6  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-4944

  * openSUSE Leap 15.6  
    zypper in -t patch SUSE-2026-4944

  * Desktop Applications Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-SP7-2026-4944

  * SUSE Linux Enterprise Server 15 SP6 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-4944

## Package List:

  * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
    * libflatpak0-debuginfo-1.16.6-150600.3.12.1
    * flatpak-1.16.6-150600.3.12.1
    * flatpak-debugsource-1.16.6-150600.3.12.1
    * flatpak-devel-1.16.6-150600.3.12.1
    * libflatpak0-1.16.6-150600.3.12.1
    * typelib-1_0-Flatpak-1_0-1.16.6-150600.3.12.1
    * flatpak-debuginfo-1.16.6-150600.3.12.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (noarch)
    * system-user-flatpak-1.16.6-150600.3.12.1
    * flatpak-zsh-completion-1.16.6-150600.3.12.1
    * flatpak-remote-flathub-1.16.6-150600.3.12.1
  * openSUSE Leap 15.6 (aarch64 i586 ppc64le s390x x86_64)
    * libflatpak0-debuginfo-1.16.6-150600.3.12.1
    * flatpak-1.16.6-150600.3.12.1
    * flatpak-debugsource-1.16.6-150600.3.12.1
    * flatpak-devel-1.16.6-150600.3.12.1
    * libflatpak0-1.16.6-150600.3.12.1
    * typelib-1_0-Flatpak-1_0-1.16.6-150600.3.12.1
    * flatpak-debuginfo-1.16.6-150600.3.12.1
  * openSUSE Leap 15.6 (noarch)
    * system-user-flatpak-1.16.6-150600.3.12.1
    * flatpak-zsh-completion-1.16.6-150600.3.12.1
    * flatpak-remote-flathub-1.16.6-150600.3.12.1
  * Desktop Applications Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * libflatpak0-debuginfo-1.16.6-150600.3.12.1
    * flatpak-1.16.6-150600.3.12.1
    * flatpak-debugsource-1.16.6-150600.3.12.1
    * flatpak-devel-1.16.6-150600.3.12.1
    * libflatpak0-1.16.6-150600.3.12.1
    * typelib-1_0-Flatpak-1_0-1.16.6-150600.3.12.1
    * flatpak-debuginfo-1.16.6-150600.3.12.1
  * Desktop Applications Module 15-SP7 (noarch)
    * system-user-flatpak-1.16.6-150600.3.12.1
    * flatpak-zsh-completion-1.16.6-150600.3.12.1
    * flatpak-remote-flathub-1.16.6-150600.3.12.1
  * SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
    * libflatpak0-debuginfo-1.16.6-150600.3.12.1
    * flatpak-1.16.6-150600.3.12.1
    * flatpak-debugsource-1.16.6-150600.3.12.1
    * flatpak-devel-1.16.6-150600.3.12.1
    * libflatpak0-1.16.6-150600.3.12.1
    * typelib-1_0-Flatpak-1_0-1.16.6-150600.3.12.1
    * flatpak-debuginfo-1.16.6-150600.3.12.1
  * SUSE Linux Enterprise Server 15 SP6 LTSS (noarch)
    * system-user-flatpak-1.16.6-150600.3.12.1
    * flatpak-zsh-completion-1.16.6-150600.3.12.1
    * flatpak-remote-flathub-1.16.6-150600.3.12.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-90616.html
  * https://www.suse.com/security/cve/CVE-2026-92162.html
  * https://www.suse.com/security/cve/CVE-2026-96275.html
  * https://www.suse.com/security/cve/CVE-2026-96276.html
  * https://www.suse.com/security/cve/CVE-2026-96280.html
  * https://www.suse.com/security/cve/CVE-2026-96281.html
  * https://www.suse.com/security/cve/CVE-2026-96282.html
  * https://www.suse.com/security/cve/CVE-2026-96807.html
  * https://www.suse.com/security/cve/CVE-2026-96808.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1280236
  * https://bugzilla.suse.com/show_bug.cgi?id=1282514
  * https://bugzilla.suse.com/show_bug.cgi?id=1282515
  * https://bugzilla.suse.com/show_bug.cgi?id=1282516
  * https://bugzilla.suse.com/show_bug.cgi?id=1282518
  * https://bugzilla.suse.com/show_bug.cgi?id=1282519
  * https://bugzilla.suse.com/show_bug.cgi?id=1282520
  * https://bugzilla.suse.com/show_bug.cgi?id=1282523
  * https://bugzilla.suse.com/show_bug.cgi?id=1282524
  * https://jira.suse.com/browse/PED-17048

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