CVE-2026-96280

The Flatpak OCI delta stream parser contains a vulnerability where it reads sizes as guint64 but passes them to GLib I/O and allocation functions expecting gsize (32 bits on 32-bit systems). This discrepancy results in undersized allocations while subsequent operations use the original 64-bit siz...

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...

CVE-2026-96280 Flatpak: flatpak: buffer overflow in oci delta stream path names on 32-bit systems

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...

DEBIAN-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...

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...

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...

UBUNTU-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...

EUVD-2026-88013

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...

CVE-2026-96279 Flatpak: flatpak: path traversal issue in oci archive extraction via hardlinks

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...

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...

CVE-2026-96279

A path traversal issue in the Flatpak OCI archive extraction process allows a malicious OCI registry to hardlink arbitrary host files into the extraction directory. This occurs when a user installs or updates a Flatpak application from an OCI remote, potentially leading to the disclosure of sensi...

CVE-2026-96279 Flatpak: flatpak: path traversal issue in oci archive extraction via hardlinks

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...

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...

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...

PT-2026-99724

Name of the Vulnerable Software and Affected Versions Flatpak affected versions not specified Description A malicious user can obtain read-access to files within the flatpak-system-helper context when a system OCI Open Container Initiative repository is configured. This occurs because the OCI cod...

PT-2026-99696

Name of the Vulnerable Software and Affected Versions Flatpak affected versions not specified Description A malicious OCI registry can hardlink arbitrary host files into the extraction directory during the installation or update of a Flatpak application from an OCI remote. This allows for the...

PT-2026-99703

Name of the Vulnerable Software and Affected Versions Red Hat Enterprise Linux affected versions not specified Description The OCI delta stream parser reads sizes as guint64 but passes them to GLib I/O and allocation functions that expect gsize. On 32-bit systems, gsize is 32 bits, which causes...

CVE-2026-96279: Improper Link Resolution Before File Access

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...

CVE-2026-96284: Improper Link Resolution Before File Access

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-2026-96280: Numeric Truncation Error

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...