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CVE-2026-43390

Опубликовано: 08 мая 2026
Источник: redhat
EPSS Низкий

Описание

In the Linux kernel, the following vulnerability has been resolved: nstree: tighten permission checks for listing 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.

A flaw was found in the Linux kernel's nstree component. This vulnerability allows privileged services to potentially view the namespaces of other privileged services, leading to information disclosure. This could enable unauthorized access to sensitive data or configurations between isolated privileged processes.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 10kernelNot affected
Red Hat Enterprise Linux 6kernelNot affected
Red Hat Enterprise Linux 7kernelNot affected
Red Hat Enterprise Linux 7kernel-rtNot affected
Red Hat Enterprise Linux 8kernelNot affected
Red Hat Enterprise Linux 8kernel-rtNot affected
Red Hat Enterprise Linux 9kernelNot affected
Red Hat Enterprise Linux 9kernel-rtNot affected

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Дополнительная информация

Дефект:
CWE-1220
https://bugzilla.redhat.com/show_bug.cgi?id=2468196kernel: nstree: tighten permission checks for listing

EPSS

Процентиль: 1%
0.00107
Низкий

Связанные уязвимости

CVSS3: 5.5
ubuntu
3 месяца назад

In the Linux kernel, the following vulnerability has been resolved: nstree: tighten permission checks for listing 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.

CVSS3: 5.5
nvd
3 месяца назад

In the Linux kernel, the following vulnerability has been resolved: nstree: tighten permission checks for listing 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.

CVSS3: 5.5
debian
3 месяца назад

In the Linux kernel, the following vulnerability has been resolved: n ...

CVSS3: 5.5
github
3 месяца назад

In the Linux kernel, the following vulnerability has been resolved: nstree: tighten permission checks for listing 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.

EPSS

Процентиль: 1%
0.00107
Низкий