CVE-2026-90231

A flaw was found in AppArmor, a Linux kernel security module. This vulnerability allows a local attacker to bypass security confinement. The issue arises from an incorrect application of unprivileged transition restrictions on tasks already confined by a stack, enabling an escape if two transitio...

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: Undefined Security Weakness

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...