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Threats Tagged 'cve-2026-43391'

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Threats Tagged 'cve-2026-43391'

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In the Linux kernel, the following vulnerability has been resolved: nsfs: tighten permission checks for handle opening Even privileged services… (CVE-2026-43391)CVE-2026-43391
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A high severity vulnerability in the Linux kernel related to namespace filesystem (nsfs) permission checks has been resolved. The issue involved insufficient permission checks when opening handles, potentially allowing privileged services to access other privileged services' namespaces and leak information. The fix centralizes permission policy using the may_see_all_namespaces() helper function to prevent unauthorized namespace visibility.

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