https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-09-28T13:19:44.352778+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2026-76642 CVE-2026-76642 — util-linux libmount Privilege Escalation via Failed Mount Helper 2026-09-28T13:19:45.217709+00:00

Affected: util-linux

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.