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CVE-2026-43391

HIGH CVSS: 8.8 Published: 2026-05-08 Modified: 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: nsfs: tighten permission checks for handle opening Even privileged services should not necessarily be able to see other privileged service's namespaces so they can't leak information to each other. Use may_see_all_namespaces() helper that centralizes this policy until the nstree adapts.

Affected Platforms

Linux Linux Kernel

Weakness Type

NVD-CWE-noinfo

References