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

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...

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...

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...

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...

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...

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...

CVE-2026-96275

The Flatpak package manager is vulnerable to an arbitrary write access as root. A malicious or compromised Flatpak repository can use the extract_extra_data() function to write attacker-controlled content to arbitrary locations on the host filesystem. The root cause stems from two combined issues...

CVE-2026-96275 Flatpak: flatpak: arbitrary write access as root via extra-data extraction

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...

EUVD-2026-85342

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...

CVE-2026-96275 Flatpak: flatpak: arbitrary write access as root via extra-data extraction

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...

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...

CVE-2026-82331 Apache BuildStream: tar source extraction escape

Improper link resolution before file access 'link following' vulnerability in the tar source plugin of Apache BuildStream running on Python = 3.12, BuildStream = 2.3.0 already makes use of the Python tarfile filter functionality, which blocks the symlink escape Users are recommended to upgrade to...

CVE-2026-82331 Apache BuildStream: tar source extraction escape

Improper link resolution before file access 'link following' vulnerability in the tar source plugin of Apache BuildStream running on Python = 3.12, BuildStream = 2.3.0 already makes use of the Python tarfile filter functionality, which blocks the symlink escape Users are recommended to upgrade to...

Symlink Attack

Overview BuildStream is an A framework for modelling build pipelines in YAML Affected versions of this package are vulnerable to Symlink Attack in the tar source plugin when handling archive extraction. An attacker can modify or overwrite arbitrary files on the host system by supplying a maliciou...

SUSE CVE-2026-55567

BleachBit cleans files to free disk space and to maintain privacy. Prior to 6.0.1, privileged Windows cleaning does not lock and validate a target's parent directory before deletion. A local unprivileged user can replace that directory with a Windows junction and use a native symlink to redirect...