Flatpak 1.10.1 Patch: Sandbox Escape & Symlink Path Traversal Fixes

Vulnerability Overview Vulnerability Name: Flatpak 1.10.1 fixes multiple security vulnerabilities Release Date: August 11, 2026 Source: The release of Flatpak 1.10.1 addresses multiple security vulnerabilities; CVE numbers are currently being applied for Scope of Impact Affected Versions: All older versions of Flatpak (excluding those with specific CVE numbers) Affected Systems: Linux distributions such as Debian 13 Risk Level: High (involving privilege escalation, arbitrary file read/write, path traversal, etc.) Remediation Plan 1. Upgrade to the latest version: Upgrade to Flatpak 1.10.1 or higher 2. Debian 13 Users: Wait for the Debian 13 security update (coming soon) 3. Older Systems: It may be necessary to roll back to a stable branch (e.g., 1.16.x) 4. Testing Issues: Flatpak v220-v98-v93 causes build test failures; use distributions such as Ubuntu 22.04 or Debian 13 Key Fix Details Fixed read-only/read-write access to the file system caused by sandbox escape Fixed local privilege escalation caused by path traversal via symbolic links Fixed arbitrary file read/write caused by symbolic links and path traversal Fixed arbitrary file write caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed extension metadata path traversal caused by symbolic link attacks Fixed downgrade prevention bypass caused by symbolic link attacks Fixed arbitrary file write caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by symbolic link attacks Fixed arbitrary file read caused by symbolic link attacks Fixed write to a fixed file name caused by sym

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Flatpak 1.10.1 Patch: Sandbox Escape & Symlink Path Traversal Fixes