CVE-2026-43403
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 ns iteration ioctls 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 a1d220d9dafa8d76ba60a784a1016c3134e6a1e8 - < 3376b345df155ca36d8611857b41ff7d5183fc38affected a1d220d9dafa8d76ba60a784a1016c3134e6a1e8 - < 2f3dea284c761c890d676f77d5e55c0c496b4ef4affected a1d220d9dafa8d76ba60a784a1016c3134e6a1e8 - < 0ad650e60150eda789deca5e78a6a09d26bf8fc9affected a1d220d9dafa8d76ba60a784a1016c3134e6a1e8 - < e6b899f08066e744f89df16ceb782e06868bd148 |
Linux | Linux | affected 6.12unaffected 0 - < 6.12unaffected 6.12.78 - <= 6.12.*unaffected 6.18.20 - <= 6.18.*unaffected 6.19.9 - <= 6.19.*+1 more versions |
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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