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util-linux: util-linux: nsenter --join-cgroup leaks root cgroup migration authority

🗓️ 03 Sep 2026 12:46:16Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 7 Views

nsenter --join-cgroup in util-linux leaks root cgroup migration authority via open fd.

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Red Hat Hardened Imagesanyaarch64libblkid2.42.2-3.4.hum1libblkid-2.42.2-3.4.hum1.aarch64.rpm
Red Hat Hardened Imagesanyx86_64libblkid2.42.2-3.4.hum1libblkid-2.42.2-3.4.hum1.x86_64.rpm

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04 Sep 2026 23:08Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17.9
EPSS0.00113
SSVC
7