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CVE-2026-78409: Improper Link Resolution Before File Access

🗓️ 02 Sep 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com

Local unprivileged users can attach host paths via X-mount.subdir symlink traversal.

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Refs
ReporterTitlePublishedViews
Family
alpinelinux
AlpineLinux
CVE-2026-78409
2 Sep 202615:11
–alpinelinux
circl
Circl
CVE-2026-78409
7 Sep 202602:01
–circl
cve
CVE
CVE-2026-78409
2 Sep 202615:11
–cve
cvelist
Cvelist
CVE-2026-78409 Util-linux: util-linux: x-mount.subdir detached-tree resolution can escape via intermediate symlinks
2 Sep 202615:11
–cvelist
debiancve
Debian CVE
CVE-2026-78409
2 Sep 202615:11
–debiancve
euvd
EUVD
EUVD-2026-70107
2 Sep 202615:11
–euvd
nvd
NVD
CVE-2026-78409
2 Sep 202616:17
–nvd
osv
OSV
ALPINE-CVE-2026-78409
2 Sep 202616:17
–osv
osv
OSV
BELL-CVE-2026-78409
5 Sep 202606:06
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osv
OSV
DEBIAN-CVE-2026-78409
2 Sep 202616:17
–osv
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03 Sep 2026 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17
EPSS0.00154
SSVC
0