Search: CVE-2026-23405

A vulnerability in the Linux kernel's AppArmor security module allowed unbounded nesting of policy namespaces, which could be exploited to exhaust system resources. The issue was fixed by limiting the number of policy namespace levels to the same depth as user namespaces. This vulnerability affects specific Linux kernel versions and has a medium severity rating with a CVSS score of 5.5. A patch is available to address this issue.