Linux Distros Unpatched Vulnerability : CVE-2026-96807

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In Flatpak before 1.18.1, a malicious sandboxed app can replace /.var/app/$appid/.ld.so with a symlink, causing regenerateldcache to write files at an arbitrary...

Fedora 45 : flatpak-builder (2026-c450ece4a4)

The remote Fedora 45 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-c450ece4a4 advisory. Update to 1.4.12 Tenable has extracted the preceding description block directly from the Fedora security advisory. Note that Nessus has not tested for this...

OPENSUSE-SU-2026:11873-1 flatpak-1.18.3-1.1 on GA media

These are all security issues fixed in the flatpak-1.18.3-1.1 package on the GA media of openSUSE Tumbleweed...

Linux Distros Unpatched Vulnerability : CVE-2026-96808

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In Flatpak before 1.18.1, the revokefs writer, used by the flatpak-system-helper to receive repository data from unprivileged callers, validated file paths by...

SUSE CVE-2026-96275

A malicious or compromised Flatpak repository can write attacker-controlled content to arbitrary locations on the host filesystem via extractextradata. On system installs, the write happens as root. Two issues combine: files/extra is resolved via path operations that follow symlinks, and blob nam...

SUSE CVE-2026-96276

If a malicious SDK container declares an extension point with a crafted directory path, and a developer runs flatpak build-init --writable-sdk --sdk-extension with that SDK, attacker-chosen files could be written outside the working directory, since the target path is resolved via a function that...

SUSE CVE-2026-96279

A malicious OCI registry can hardlink arbitrary host files into the extraction directory when a user installs or updates a Flatpak application from an OCI remote, allowing disclosure of arbitrary host file contents. For system-wide installs running as root, this includes sensitive files such as...

SUSE CVE-2026-96280

The OCI delta stream parser read sizes as guint64 but passed them to GLib I/O and allocation functions expecting gsize 32 bits on 32-bit systems, causing undersized allocations while subsequent operations use the original 64-bit size, leading to heap buffer overflows. An attacker controlling an O...

SUSE CVE-2026-96281

On a multi-user system, a user with an active local login session could downgrade a system-wide Flatpak app to an older version by removing the app's remote ref via the unprivileged system-helper RemoveLocalRef method, causing the anti-downgrade check to fail to find a reference date. A malicious...

SUSE CVE-2026-96282

A malicious Flatpak extension can probe the host filesystem to determine what files and directories exist at arbitrary paths, and host directory listings can be disclosed to sandboxed applications using the extension. Additionally, unvalidated extension metadata can cause extension content to be...

SUSE CVE-2026-96283

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...

SUSE 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...

SUSE CVE-2026-96807

In Flatpak before 1.18.1, a malicious sandboxed app can replace /.var/app/$appid/.ld.so with a symlink, causing regenerateldcache to write files at an arbitrary location. The filenames and content are not attacker controlled, making this hard to exploit...

SUSE CVE-2026-96808

In Flatpak before 1.18.1, the revokefs writer, used by the flatpak-system-helper to receive repository data from unprivileged callers, validated file paths by rejecting literal .. components but did not prevent symlink traversal. A malicious local user in an active local session could obtain two...

CVE-2026-96807

A flaw was found in Flatpak. A malicious sandboxed application can manipulate a symlink, causing the regenerateldcache function to write files to an unintended location. While the attacker cannot control the content or filenames, this vulnerability could lead to a low impact on system integrity o...

CVE-2026-96808

A flaw was found in Flatpak. A malicious local user in an active local session could exploit a symlink traversal vulnerability in the revokefs writer. This flaw allows an attacker to modify files belonging to a different revokefs session after they have been validated. Consequently, an attacker...

DEBIAN-CVE-2026-96808

In Flatpak before 1.18.1, the revokefs writer, used by the flatpak-system-helper to receive repository data from unprivileged callers, validated file paths by rejecting literal .. components but did not prevent symlink traversal. A malicious local user in an active local session could obtain two...

DEBIAN-CVE-2026-96807

In Flatpak before 1.18.1, a malicious sandboxed app can replace /.var/app/$appid/.ld.so with a symlink, causing regenerateldcache to write files at an arbitrary location. The filenames and content are not attacker controlled, making this hard to exploit...

CVE-2026-96808

In Flatpak before 1.18.1, the revokefs writer, used by the flatpak-system-helper to receive repository data from unprivileged callers, validated file paths by rejecting literal .. components but did not prevent symlink traversal. A malicious local user in an active local session could obtain two...

CVE-2026-96807

In Flatpak before 1.18.1, a malicious sandboxed app can replace /.var/app/$appid/.ld.so with a symlink, causing regenerateldcache to write files at an arbitrary location. The filenames and content are not attacker controlled, making this hard to exploit...