cvedb.io
CVE-2026-23405
MEDIUM · CVSS 5.5
EPSS exploitation probability: 0%
Published 2026-04-01T09:16:16.153 · Last modified 2026-06-17T10:21:31.077

Summary

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix: limit the number of levels of policy namespaces Currently the number of policy namespaces is not bounded relying on the user namespace limit. However policy namespaces aren't strictly tied to user namespaces and it is possible to create them and nest them arbitrarily deep which can be used to exhaust system resource. Hard cap policy namespaces to the same depth as user namespaces.

Affected products

linux — linux_kernel

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.