🛡️ OESA-2026-2709 — flatpak

🔴 CVSS 9.5 — Critical ✅ No Known Exploit OSV
9.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

flatpak security update

flatpak is a system for building, distributing and running sandboxed desktop applications on Linux. See https://wiki.gnome.org/Projects/SandboxedApps for more information.

Security Fix(es):

Every Flatpak app is able to read and write arbitrary files on the host and execute code in the host context, resulting in a sandbox escape vulnerability.(CVE-2026-34078)

Flatpak is a Linux application sandboxing and distribution framework. Prior to 1.16.4, the caching for ld.so removes outdated cache files without properly checking that the app controlled path to the outdated cache is in the cache directory. This allows Flatpak apps to delete arbitrary files on the host. This vulnerability is fixed in 1.16.4.(CVE-2026-34079)

Affected software

OESA-2026-2709 is recorded against 1 package.

  • flatpak (fixed in 1.0.3-14.oe2003sp4)

Timeline and source

Published on 24 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

www.openeuler.org (Advisory)
nvd.nist.gov (Advisory)
nvd.nist.gov (Advisory)

Details

Severity CRITICAL
CVSS Score 9.5
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-06-24
Updated 2026-08-12
Modified 2026-06-24
Fix URL N/A

Affected Packages

Software From version Fixed in
flatpak — 1.0.3-14.oe2003sp4

Similar Threats

Exploit Protection

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