CVE-2026-97029 Flatpak: flatpak: sandboxed app can signal unsandboxed processes in the same process group

Flatpak's process ID namespace separation does not prevent a sandboxed app's kill0, signal or killpg0, signal calls from reaching processes outside the sandbox that share the same process group. A malicious or compromised Flatpak app can use this to cause denial of service by terminating processe...

EUVD-2026-88627

Flatpak's process ID namespace separation does not prevent a sandboxed app's kill0, signal or killpg0, signal calls from reaching processes outside the sandbox that share the same process group. A malicious or compromised Flatpak app can use this to cause denial of service by terminating processe...

CVE-2026-97029

Flatpak's process ID namespace separation does not prevent a sandboxed app's kill0, signal or killpg0, signal calls from reaching processes outside the sandbox that share the same process group. A malicious or compromised Flatpak app can use this to cause denial of service by terminating processe...

CVE-2026-97029

Flatpak's process ID namespace separation does not prevent a sandboxed app's kill0, signal or killpg0, signal calls from reaching processes outside the sandbox that share the same process group. A malicious or compromised Flatpak app can use this to cause denial of service by terminating processe...

CVE-2026-97024 Flatpak: flatpak: arbitrary write in root context via path traversal in deploy directory files/etc

A path traversal vulnerability in Flatpak's handling of the files/etc directory during app deployment allows a malicious Flatpak app to cause certain host system files such as passwd, group, machine-id, or resolv.conf to be emptied or replaced with a symlink when the app is installed or upgraded...

EUVD-2026-88624

A path traversal vulnerability in Flatpak's handling of the files/etc directory during app deployment allows a malicious Flatpak app to cause certain host system files such as passwd, group, machine-id, or resolv.conf to be emptied or replaced with a symlink when the app is installed or upgraded...

CVE-2026-97024

A path traversal vulnerability exists in Flatpak 's handling of the files/etc directory during app deployment. A malicious Flatpak app can exploit this to empty or replace critical host system files—such as passwd , group , machine-id , or resolv.conf —with a symlink. In system-wide installations...

CVE-2026-97024 Flatpak: flatpak: arbitrary write in root context via path traversal in deploy directory files/etc

A path traversal vulnerability in Flatpak's handling of the files/etc directory during app deployment allows a malicious Flatpak app to cause certain host system files such as passwd, group, machine-id, or resolv.conf to be emptied or replaced with a symlink when the app is installed or upgraded...

CVE-2026-97024

A path traversal vulnerability in Flatpak's handling of the files/etc directory during app deployment allows a malicious Flatpak app to cause certain host system files such as passwd, group, machine-id, or resolv.conf to be emptied or replaced with a symlink when the app is installed or upgraded...

CVE-2026-97024

A path traversal vulnerability in Flatpak's handling of the files/etc directory during app deployment allows a malicious Flatpak app to cause certain host system files such as passwd, group, machine-id, or resolv.conf to be emptied or replaced with a symlink when the app is installed or upgraded...

PT-2026-105627

These are all security issues fixed in the flatpak-1.18.4-1.1 package on the GA media of openSUSE Tumbleweed...

Amazon Linux 2 : flatpak (ALAS-2026-3959)

The version of flatpak installed on the remote host is prior to 1.0.9-10. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3959 advisory. In Flatpak before 1.18.1, a malicious sandboxed app can obtain arbitrary read and write access to files on the host, whic...

PT-2026-102446

Name of the Vulnerable Software and Affected Versions Flatpak versions prior to 1.18.4 Description A path traversal issue exists in the way Flatpak handles the files/etc directory during app deployment. This allows a malicious application to empty or replace critical host system files, such as...

CVE-2026-97024

A path traversal vulnerability in Flatpak's handling of the files/etc directory during app deployment allows a malicious Flatpak app to cause certain host system files such as passwd, group, machine-id, or resolv.conf to be emptied or replaced with a symlink when the app is installed or upgraded...

OPENSUSE-SU-2026:11918-1 flatpak-1.18.4-1.1 on GA media

These are all security issues fixed in the flatpak-1.18.4-1.1 package on the GA media of openSUSE Tumbleweed...

CVE-2026-97024: UNIX Symbolic Link (Symlink) Following

A path traversal vulnerability in Flatpak's handling of the files/etc directory during app deployment allows a malicious Flatpak app to cause certain host system files such as passwd, group, machine-id, or resolv.conf to be emptied or replaced with a symlink when the app is installed or upgraded...

Linux Distros Unpatched Vulnerability : CVE-2026-97029

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Flatpak's process ID namespace separation does not prevent a sandboxed app's kill0, signal or killpg0, signal calls from reaching processes outside the sandbox...

Important: flatpak

Issue Overview: A flaw was found in Flatpak. A Time-of-check to time-of-use TOCTOU race condition exists in the org.freedesktop.Flatpak.SystemHelper component. This vulnerability occurs because a privileged chmod operation executes before the OSTree repository validation within the Deploy functio...

Linux Distros Unpatched Vulnerability : CVE-2026-97024

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A path traversal vulnerability in Flatpak's handling of the files/etc directory during app deployment allows a malicious Flatpak app to cause certain host syste...

Linux Distros Unpatched Vulnerability : CVE-2026-97027

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Flatpak passes through arbitrary vendor-extension keys unmodified when exporting an application's Desktop Entry .desktop and D-Bus Service .service files, inste...