CVE-2026-43390
kernel: nstree: tighten permission checks for listing
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Severity
UnknownRed Hat Product Security
CVSS
Review impact separately from score.
Published · May 8, 2026
Updated · June 28, 2026
Description
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.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CWE-1220 · Insufficient Granularity of Access Control