Linux Distros Unpatched Vulnerability : CVE-2026-90231

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - apparmor: fix unconfined user namespace restriction forced stack If a task is already confined by a stack the unprivileged transition restriction on unconfined ...

CVE-2026-90231

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix unconfined user namespace restriction forced stack If a task is already confined by a stack the unprivileged transition restriction on unconfined is not correctly, applied. This results in an escape if two transitio...

EUVD-2026-81824

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix unconfined user namespace restriction forced stack If a task is already confined by a stack the unprivileged transition restriction on unconfined is not correctly, applied. This results in an escape if two transitio...

CVE-2026-90231

CVE-2026-90231 is a flaw in the Linux kernel's AppArmor subsystem. When a task is already confined by a profile stack , the unprivileged user-namespace transition restriction on the unconfined profile is not correctly enforced. This allows a confinement escape if two transitions through an unconf...

Linux Kernel Security Vulnerabilities

The Linux kernel has a security vulnerability. This vulnerability stems from AppArmor’s improper forced stack checks regarding restrictions on unconfined user namespaces. The non-privileged transformation restrictions are not applied correctly, which may lead to an escape attempt when two...