linux: In the Linux kernel, the following vulnerability has been resolved: nsfs: tighten permission checks for handle openi...
CVE-2026-43391 is fixed in linux on 1 platform by DEBIAN-CVE-2026-43391 (version 6.19.10-1), released May 15, 2026. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 14 | 6.19.10-1 | DEBIAN-CVE-2026-43391 | May 15, 2026 |
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