{"id":"AZL-99081","summary":"CVE-2026-76642 affecting package util-linux 2.40.2-5","details":"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.","modified":"2026-09-04T14:17:10.852696176Z","published":"2026-09-03T13:06:08Z","upstream":["CVE-2026-76642"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-76642"}],"affected":[{"package":{"name":"util-linux","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/util-linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.40.2-5"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-99081.json"}}],"schema_version":"1.9.0"}