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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👁 21 Views

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

Related
Packages
Refs
ReporterTitlePublishedViews
Family
alpinelinux
AlpineLinux
CVE-2026-78408
2 Sep 202615:05
–alpinelinux
cbl_mariner
CBLMariner
CVE-2026-78408 affecting package util-linux for versions less than 2.40.2-6
18 Sep 202614:58
–cbl_mariner
circl
Circl
CVE-2026-78408
7 Sep 202602:01
–circl
cve
CVE
CVE-2026-78408
2 Sep 202615:05
–cve
cvelist
Cvelist
CVE-2026-78408 Util-linux: util-linux: nsenter --join-cgroup leaks root cgroup migration authority
2 Sep 202615:05
–cvelist
debiancve
Debian CVE
CVE-2026-78408
2 Sep 202615:05
–debiancve
euvd
EUVD
EUVD-2026-70105
2 Sep 202615:05
–euvd
mend
Mend
CVE-2026-78408
2 Sep 202615:05
–mend
mscve
Microsoft CVE
Util-linux: util-linux: nsenter --join-cgroup leaks root cgroup migration authority
7 Sep 202609:03
–mscve
nvd
NVD
CVE-2026-78408
2 Sep 202616:17
–nvd
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OSOS VersionArchitecturePackagePackage VersionFilename
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Red Hat Hardened Imagesanyx86_64libblkid2.42.2-3.4.hum1libblkid-2.42.2-3.4.hum1.x86_64.rpm
Red Hat Hardened Imagesanyaarch64libblkid-devel2.42.2-3.4.hum1libblkid-devel-2.42.2-3.4.hum1.aarch64.rpm
Red Hat Hardened Imagesanyx86_64libblkid-devel2.42.2-3.4.hum1libblkid-devel-2.42.2-3.4.hum1.x86_64.rpm
Red Hat Hardened Imagesanyaarch64libfdisk2.42.2-3.4.hum1libfdisk-2.42.2-3.4.hum1.aarch64.rpm
Red Hat Hardened Imagesanyx86_64libfdisk2.42.2-3.4.hum1libfdisk-2.42.2-3.4.hum1.x86_64.rpm
Red Hat Hardened Imagesanyaarch64libfdisk-devel2.42.2-3.4.hum1libfdisk-devel-2.42.2-3.4.hum1.aarch64.rpm
Red Hat Hardened Imagesanyx86_64libfdisk-devel2.42.2-3.4.hum1libfdisk-devel-2.42.2-3.4.hum1.x86_64.rpm
Red Hat Hardened Imagesanyaarch64liblastlog22.42.2-3.4.hum1liblastlog2-2.42.2-3.4.hum1.aarch64.rpm
Red Hat Hardened Imagesanyx86_64liblastlog22.42.2-3.4.hum1liblastlog2-2.42.2-3.4.hum1.x86_64.rpm
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05 Oct 2026 18:23Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17.9
EPSS0.00186
SSVC
21