ALSA-2026:21757

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux.

Security Fix(es):

• flatpak: Flatpak: Arbitrary code execution via crafted symlinks in sandbox-expose options (CVE-2026-34078)
• flatpak: Flatpak: Arbitrary file deletion on host via improper cache file path validation (CVE-2026-34079)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.