MGASA-2026-0477 Updated flatpak package fixes security vulnerabilities

Arbitrary file deletion in root context via path traversal in deploy directory export/bin. CVE-2026-97023 Arbitrary write in root context via path traversal in deploy directory files/etc. CVE-2026-97024 World-readable oci authentication token in system-helper cache path. CVE-2026-97025...

AlmaLinux 9.6 [TuxCare] Security Update: flatpak / flatpak-devel / flatpak-libs / flatpak-selinux / etc (ALMALINUX9.6:CLSA-2026:1790844951)

The AlmaLinux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1790844951 advisory. - In Flatpak before 1.18.1, the revokefs writer, used by the flatpak-system-helper to receive repository data from unprivileged callers,...

Rocky Linux 9.6 [TuxCare] Security Update: flatpak / flatpak-devel / flatpak-libs / flatpak-selinux / etc (ALMALINUX9.6:CLSA-2026:1790844951)

The Rocky Linux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1790844951 advisory. - In Flatpak before 1.18.1, the revokefs writer, used by the flatpak-system-helper to receive repository data from unprivileged callers,...

SUSE CVE-2026-97025

Flatpak writes the OCI repository authentication token with world-readable permissions 0644 in the system-helper's cache directory, allowing other local users on a multi-user system to read the token and impersonate the authenticated user against the OCI repository. Only OCI-based sources e.g. as...

CVE-2026-97025

Flatpak writes the OCI repository authentication token with world-readable permissions 0644 in the system-helper's cache directory, allowing other local users on a multi-user system to read the token and impersonate the authenticated user against the OCI repository. Only OCI-based sources e.g. as...

CVE-2026-97026 Flatpak: flatpak: world-writable temporary child repositories in system-helper cache path

Flatpak creates temporary child repository directories under the user cache with world-writable permissions 0777. On multi-user systems with a permissive umask, other local users could read or modify the temporary directory used while installing apps or runtimes, potentially causing installation...

CVE-2026-97026

Flatpak creates temporary child repository directories within the user cache using world-writable permissions (0777) . On multi-user systems with a permissive umask, this flaw allows other local users to read or modify the temporary directories used during the installation of applications or runt...

CVE-2026-97025 Flatpak: flatpak: world-readable oci authentication token in system-helper cache path

Flatpak writes the OCI repository authentication token with world-readable permissions 0644 in the system-helper's cache directory, allowing other local users on a multi-user system to read the token and impersonate the authenticated user against the OCI repository. Only OCI-based sources e.g. as...

CVE-2026-97025

The Flatpak application is vulnerable to a local information disclosure flaw where it writes the OCI repository authentication token with world-readable permissions (0644 ) in the system-helper's cache directory. This allows other local users on a multi-user system to read the token and impersona...

DEBIAN-CVE-2026-96284

A malicious user can get read-access to files in the flatpak-system-helper context if a system OCI repository is configured, because the OCI code paths in the system helper follow symlinks when importing OCI images that are under the user's control...

CVE-2026-96284

A malicious user can get read-access to files in the flatpak-system-helper context if a system OCI repository is configured, because the OCI code paths in the system helper follow symlinks when importing OCI images that are under the user's control...

CVE-2026-96284

A malicious user can get read-access to files in the flatpak-system-helper context if a system OCI repository is configured, because the OCI code paths in the system helper follow symlinks when importing OCI images that are under the user's control...

UBUNTU-CVE-2026-96284

A malicious user can get read-access to files in the flatpak-system-helper context if a system OCI repository is configured, because the OCI code paths in the system helper follow symlinks when importing OCI images that are under the user's control...

CVE-2026-96284 Flatpak: flatpak: arbitrary read-access to files in the system-helper context via oci symlink following

A malicious user can get read-access to files in the flatpak-system-helper context if a system OCI repository is configured, because the OCI code paths in the system helper follow symlinks when importing OCI images that are under the user's control...

EUVD-2026-88046

A malicious user can get read-access to files in the flatpak-system-helper context if a system OCI repository is configured, because the OCI code paths in the system helper follow symlinks when importing OCI images that are under the user's control...

CVE-2026-96284

The Flatpak utility is vulnerable to a flaw where the OCI code paths in the system-helper context follow symlinks when importing OCI images. A malicious user who controls the OCI image can exploit this to gain arbitrary read-access to files within the flatpak-system-helper context, provided a sys...

CVE-2026-96284

A malicious user can get read-access to files in the flatpak-system-helper context if a system OCI repository is configured, because the OCI code paths in the system helper follow symlinks when importing OCI images that are under the user's control...

CVE-2026-96284 Flatpak: flatpak: arbitrary read-access to files in the system-helper context via oci symlink following

A malicious user can get read-access to files in the flatpak-system-helper context if a system OCI repository is configured, because the OCI code paths in the system helper follow symlinks when importing OCI images that are under the user's control...

CVE-2026-96283 Flatpak: flatpak: flatpak-system-helper cross-user cancelpull orphans another user's ongoing pull

By calling org.freedesktop.Flatpak.SystemHelper.CancelPull on another user's pull, the pull is not actually cancelled but removed from internal tracking, making it impossible for the owning user to stop it. Ongoing pulls cannot be stopped...

CVE-2026-96283 Flatpak: flatpak: flatpak-system-helper cross-user cancelpull orphans another user's ongoing pull

By calling org.freedesktop.Flatpak.SystemHelper.CancelPull on another user's pull, the pull is not actually cancelled but removed from internal tracking, making it impossible for the owning user to stop it. Ongoing pulls cannot be stopped...