[ GLSA 202608-06 ] Flatpak: Multiple Vulnerabilities

[email protected] Fri, 14 Aug 2026 00:50:54 -0000
Newsgroups	gmane.linux.gentoo.announce
Message-ID	<178666865419.1.7239766317013308671@ea9ff15b5095>
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Gentoo Linux Security Advisory                           GLSA 202608-06
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                                           https://security.gentoo.org/
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 Severity: High
    Title: Flatpak: Multiple Vulnerabilities
     Date: August 14, 2026
     Bugs: #972414
       ID: 202608-06

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Synopsis
========

Multiple vulnerabilities have been found in Flatpak, the worst of which
allows sandbox escape.

Background
==========

Flatpak is a Linux application sandboxing and distribution framework.

Affected packages
=================

Package           Vulnerable    Unaffected
----------------  ------------  ------------
sys-apps/flatpak  < 1.16.4      >= 1.16.4

Description
===========

Multiple vulnerabilities have been discovered in Flatpak. Please review
the CVE identifiers referenced below for details.

Impact
======

Please review the referenced CVE identifiers for details.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Flatpak users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=sys-apps/flatpak-1.16.4"

References
==========

[ 1 ] CVE-2026-34078
      https://nvd.nist.gov/vuln/detail/CVE-2026-34078
[ 2 ] CVE-2026-34079
      https://nvd.nist.gov/vuln/detail/CVE-2026-34079

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

 https://security.gentoo.org/glsa/202608-06

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
[email protected] or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2026 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5
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