flatpak vulnerabilities and fixes

Recent CVEs affecting flatpak, with upgrade or downgrade steps. 2 tracked.

flatpak has 2 tracked vulnerabilities, 1 critical. A fixed release or vendor patch exists for 2. Most recent: 2026-04-07. Highest priority: CVE-2026-34078 (score 67/100).

• CVE-2026-34078 CRITICAL 10.0 UPGRADE Flatpak is a Linux application sandboxing and distribution framework
• CVE-2026-34079 HIGH 7.5 UPGRADE Flatpak is a Linux application sandboxing and distribution framework

FAQ

How do I fix flatpak vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is flatpak being exploited right now?

None of the tracked flatpak CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.

Which flatpak CVE should I patch first?

CVE-2026-34078 currently ranks highest (67/100): Flatpak is a Linux application sandboxing and distribution framework.

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