Flatpak: Multiple Vulnerabilities — GLSA 202608-06

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

Package	sys-apps/flatpak on all architectures
Affected versions	< 1.16.4
Unaffected versions	>= 1.16.4

Flatpak is a Linux application sandboxing and distribution framework.

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

Please review the referenced CVE identifiers for details.

There is no known workaround at this time.

All Flatpak users should upgrade to the latest version:

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

Release date
August 14, 2026

Latest revision
August 14, 2026: 1

Severity
high

Exploitable
local

Bugzilla entries