CVE-2026-34078Critical· 10.0▾ MidnightFlatpak is a Linux application sandboxing and distribution framework. Prior to 1.16.4, the Flatpak portal accepts paths in the sandbox-expose options which can be app-controlled symlinks pointing at arbitrary paths. Flatpak run mounts th…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 55 · likelihood 0.3 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
1.7%
Flatpak is a Linux application sandboxing and distribution framework. Prior to 1.16.4, the Flatpak portal accepts paths in the sandbox-expose options which can be app-controlled symlinks pointing at arbitrary paths. Flatpak run mounts the resolved host path in the sandbox. This gives apps access to all host files and can be used as a primitive to gain code execution in the host context. This vulnerability is fixed in 1.16.4.
flatpak <= 1.16.3Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-90616High· 7.4In Flatpak before 1.18.1, a malicious sandboxed app can obtain arbitrary read and write access to files on the host, which can be escalated to arbitrary code execution on the host, a different vulnerability than CVE-2026-76925
CVE-2026-76925Medium· 5.8A flaw was found in Flatpak
CVE-2026-63125Critical· 9.9Incus is a system container and virtual machine manager
CVE-2026-81727High· 7.1nltk: NLTK: Filesystem containment bypass allows local file overwrite (CVE-2026-81727)
CVE-2015-5287High· 7.8The abrt-hook-ccpp help program in Automatic Bug Reporting Tool (ABRT) before 2.7.1 allows local users with certain permissions to gain privileges via a symlink attack on a file with a predictable name, as demonstrated by /var/tmp/abrt/a…
CVE-2021-41379Medium· 5.5Windows Installer Elevation of Privilege Vulnerability