CVE-2026-43391

8.8 Élevée

Publiée le 08/05/2026 à 17:16 · Modifiée le 07/09/2026 à 18:17 · Modifiée · Source : 416baaa9-dc9f-4396-8d5f-8c081fb06d67

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.

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Produits concernés

Linux
Linux linux kernel

Scores CVSS

Version	Score	Source	Vecteur
3.1	8.8 Élevée	416baaa9-dc9f-4396-8d5f-8c081fb06d67	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`

Références

https://git.kernel.org/stable/c/1797ee11451f1b2be69863a9f5bd43b948813fdf Patch
https://git.kernel.org/stable/c/24ebaf6676ae4f74f4856eb645959b15e62bc1b4
https://git.kernel.org/stable/c/d2324a9317f00013facb0ba00b00440e19d2af5e Patch

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories