It was discovered that Flatpak incorrectly handled certain persisted directories. An attacker could possibly use this issue to read and write files in locations it would not normally have access to. A patch was also needed to Bubblewrap in order to avoid race conditions caused by this fix.
{
    "availability": "No subscription required",
    "binaries": [
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}{
    "availability": "No subscription required",
    "binaries": [
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            "binary_name": "flatpak",
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        {
            "binary_name": "flatpak-tests",
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}{
    "availability": "No subscription required",
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            "binary_name": "flatpak-tests",
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}