ALPINE-CVE-2026-76642
ALPINE-CVE-2026-76642
This page contains facts from public vulnerability sources. Check the original advisory before updating.
util-linux versions through 2.41.5 and 2.42.2 fail to check mount helper exit status before running post-mount hooks, allowing unprivileged users to execute privileged operations on pre-existing filesystems. Attackers can exploit X-mount.idmap or X-mount.owner hooks to clone filesystems with inherited suid bits or modify target inode permissions after a helper fails, achieving privilege escalation.
CVSS 8.5 · High · Fix available
- Published
- Updated
Stack: system
Affected products and versions
util-linux Alpine:v3.22
- Affected ranges
- ECOSYSTEM: < 2.41.6-r0
Update to 2.41.6-r0
util-linux Alpine:v3.23
- Affected ranges
- ECOSYSTEM: < 2.41.6-r0
Update to 2.41.6-r0
util-linux Alpine:v3.24
- Affected ranges
- ECOSYSTEM: < 2.42.3-r0
Update to 2.42.3-r0