AlmaLinux 9.2 [TuxCare] Security Update: flatpak / flatpak-devel / flatpak-libs / flatpak-selinux / etc (ALMALINUX9.2:CLSA-2026:1789979782)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1789979782 advisory. - In Flatpak before 1.18.1, a malicious sandboxed app can obtain arbitrary read and write access to files on the host, which can be escalated...

AlmaLinux 9.2 [TuxCare] Security Update: flatpak / flatpak-devel / flatpak-libs / flatpak-selinux / etc (ALMALINUX9.2:CLSA-2025:1741215879)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1741215879 advisory. - Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. in versions before 1.10.9, 1.12.9,...

AlmaLinux 9.6 [TuxCare] Security Update: flatpak / flatpak-devel / flatpak-libs / flatpak-selinux / etc (ALMALINUX9.6:CLSA-2026:1790035964)

The AlmaLinux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1790035964 advisory. - In Flatpak before 1.18.1, a malicious sandboxed app can obtain arbitrary read and write access to files on the host, which can be escalated...

Rocky Linux 9.6 [TuxCare] Security Update: flatpak / flatpak-devel / flatpak-libs / flatpak-selinux / etc (ALMALINUX9.6:CLSA-2026:1790035964)

The Rocky Linux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1790035964 advisory. - In Flatpak before 1.18.1, a malicious sandboxed app can obtain arbitrary read and write access to files on the host, which can be escalat...

Amazon Linux 2 : flatpak (ALAS-2026-3959)

The version of flatpak installed on the remote host is prior to 1.0.9-10. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3959 advisory. In Flatpak before 1.18.1, a malicious sandboxed app can obtain arbitrary read and write access to files on the host, whic...

Important: flatpak

Issue Overview: In Flatpak before 1.18.1, a malicious sandboxed app can obtain arbitrary read and write access to files on the host, which can be escalated to arbitrary code execution on the host, a different vulnerability than CVE-2026-76925. Flatpak creates a few app data directories e.g.,...

jfp-kernel-sandbox-poc

JFP Kernel Sandbox bwrap PoC A Proof of Concept PoC demon...

Astra Linux – Vulnerability in Flatpak

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. In versions before 1.10.9, 1.12.9, 1.14.6, and 1.15.8, a malicious or compromised Flatpak application could execute arbitrary code outside its sandbox. Normally, the --command argument of flatpak...

CVE-2026-90616

In Flatpak before 1.18.1, a malicious sandboxed app can obtain arbitrary read and write access to files on the host, which can be escalated to arbitrary code execution on the host, a different vulnerability than CVE-2026-76925. Flatpak creates a few app data directories e.g., /var/cache, /var/dat...

DEBIAN-CVE-2026-90616

In Flatpak before 1.18.1, a malicious sandboxed app can obtain arbitrary read and write access to files on the host, which can be escalated to arbitrary code execution on the host, a different vulnerability than CVE-2026-76925. Flatpak creates a few app data directories e.g., /var/cache, /var/dat...

CVE-2026-90616

In Flatpak before 1.18.1, a malicious sandboxed app can obtain arbitrary read and write access to files on the host, which can be escalated to arbitrary code execution on the host, a different vulnerability than CVE-2026-76925. Flatpak creates a few app data directories e.g., /var/cache, /var/dat...

UBUNTU-CVE-2026-90616

In Flatpak before 1.18.1, a malicious sandboxed app can obtain arbitrary read and write access to files on the host, which can be escalated to arbitrary code execution on the host, a different vulnerability than CVE-2026-76925. Flatpak creates a few app data directories e.g., /var/cache, /var/dat...

CVE-2026-90616

In Flatpak before 1.18.1, a malicious sandboxed app can obtain arbitrary read and write access to files on the host, which can be escalated to arbitrary code execution on the host, a different vulnerability than CVE-2026-76925. Flatpak creates a few app data directories e.g., /var/cache, /var/dat...

CVE-2026-90616

In Flatpak before 1.18.1, a malicious sandboxed app can obtain arbitrary read and write access to files on the host, which can be escalated to arbitrary code execution on the host, a different vulnerability than CVE-2026-76925. Flatpak creates a few app data directories e.g., /var/cache, /var/dat...

CVE-2026-90616

In Flatpak before 1.18.1 , a malicious sandboxed app can gain arbitrary read and write access to host files , escapable to arbitrary code execution on the host. The root cause is a missing symlink protection in the bind-mounting process: Flatpak creates app data directories (e.g., /var/cache, /va...

EUVD-2026-76911

In Flatpak before 1.18.1, a malicious sandboxed app can obtain arbitrary read and write access to files on the host, which can be escalated to arbitrary code execution on the host, a different vulnerability than CVE-2026-76925. Flatpak creates a few app data directories e.g., /var/cache, /var/dat...

CVE-2026-90616

In Flatpak before 1.18.1, a malicious sandboxed app can obtain arbitrary read and write access to files on the host, which can be escalated to arbitrary code execution on the host, a different vulnerability than CVE-2026-76925. Flatpak creates a few app data directories e.g., /var/cache, /var/dat...

PT-2026-90721

Name of the Vulnerable Software and Affected Versions Flatpak versions prior to 1.18.1 Description A malicious sandboxed application can obtain arbitrary read and write access to files on the host, potentially leading to arbitrary code execution. This occurs because Flatpak creates app data...

CVE-2026-90616: UNIX Symbolic Link (Symlink) Following

In Flatpak before 1.18.1, a malicious sandboxed app can obtain arbitrary read and write access to files on the host, which can be escalated to arbitrary code execution on the host, a different vulnerability than CVE-2026-76925. Flatpak creates a few app data directories e.g., /var/cache, /var/dat...

CVE-2026-90616: UNIX Symbolic Link (Symlink) Following

In Flatpak before 1.18.1, a malicious sandboxed app can obtain arbitrary read and write access to files on the host, which can be escalated to arbitrary code execution on the host, a different vulnerability than CVE-2026-76925. Flatpak creates a few app data directories e.g., /var/cache, /var/dat...