CVE-2026-43391
Published: May 8, 2026
Modified: May 11, 2026
CVSS v3.1
8.8
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.
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected 5222470b2fbb3740f931f189db33dd1367b1ae75 - < 1797ee11451f1b2be69863a9f5bd43b948813fdfaffected 5222470b2fbb3740f931f189db33dd1367b1ae75 - < d2324a9317f00013facb0ba00b00440e19d2af5e |
Linux | Linux | affected 6.18unaffected 0 - < 6.18unaffected 6.19.9 - <= 6.19.*unaffected 7.0 - <= * |
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
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