UBUNTU-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-2026-96808

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...

UBUNTU-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-2026-96807

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...

EUVD-2026-85424

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-2026-96808

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-2026-96808

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-2026-96808

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-2026-96808

Flatpak versions prior to 1.18.1 contain a symlink traversal vulnerability in the revokefs writer component, which is utilized by the flatpak-system-helper to process repository data from unprivileged callers. While the system rejects literal .. components, it fails to prevent traversal via symli...

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-2026-96808

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...

CVE-2026-96807

A vulnerability exists in Flatpak versions prior to 1.18.1 where a malicious sandboxed application can replace ~/.var/app/$appid/.ld.so with a symlink . This action causes the regenerate_ld_cache function to write files to an arbitrary location. While the attacker cannot control the specific file...

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-2026-96807

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-2026-96807

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...

EUVD-2026-85423

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...

[SECURITY] [DSA 6510-1] xdg-dbus-proxy security update

------------------------------------------------------------------------- Debian Security Advisory DSA-6510-1 [email protected] https://www.debian.org/security/ Alberto Garcia September 23, 2026 https://www.debian.org/security/faq -...

DEBIAN-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...

DEBIAN-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...