{"id":"OESA-2026-3722","summary":"util-linux security update","details":"The util-linux package contains a random collection of files that implements some low-level basic linux utilities.\r\n\r\nSecurity Fix(es):\n\nutil-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.(CVE-2026-76642)","modified":"2026-09-13T16:45:31.526892200Z","published":"2026-09-14T16:33:44Z","upstream":["CVE-2026-76642"],"database_specific":{"severity":"High"},"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3722"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-76642"}],"affected":[{"package":{"name":"util-linux","ecosystem":"openEuler:24.03-LTS-SP1","purl":"pkg:rpm/openEuler/util-linux&distro=openEuler-24.03-LTS-SP1"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.39.1-41.oe2403sp1"}]}],"ecosystem_specific":{"x86_64":["libblkid-2.39.1-41.oe2403sp1.x86_64.rpm","libfdisk-2.39.1-41.oe2403sp1.x86_64.rpm","libmount-2.39.1-41.oe2403sp1.x86_64.rpm","libsmartcols-2.39.1-41.oe2403sp1.x86_64.rpm","libuuid-2.39.1-41.oe2403sp1.x86_64.rpm","python3-libmount-2.39.1-41.oe2403sp1.x86_64.rpm","util-linux-2.39.1-41.oe2403sp1.x86_64.rpm","util-linux-debuginfo-2.39.1-41.oe2403sp1.x86_64.rpm","util-linux-debugsource-2.39.1-41.oe2403sp1.x86_64.rpm","util-linux-devel-2.39.1-41.oe2403sp1.x86_64.rpm","util-linux-user-2.39.1-41.oe2403sp1.x86_64.rpm","uuidd-2.39.1-41.oe2403sp1.x86_64.rpm"],"aarch64":["libblkid-2.39.1-41.oe2403sp1.aarch64.rpm","libfdisk-2.39.1-41.oe2403sp1.aarch64.rpm","libmount-2.39.1-41.oe2403sp1.aarch64.rpm","libsmartcols-2.39.1-41.oe2403sp1.aarch64.rpm","libuuid-2.39.1-41.oe2403sp1.aarch64.rpm","python3-libmount-2.39.1-41.oe2403sp1.aarch64.rpm","util-linux-2.39.1-41.oe2403sp1.aarch64.rpm","util-linux-debuginfo-2.39.1-41.oe2403sp1.aarch64.rpm","util-linux-debugsource-2.39.1-41.oe2403sp1.aarch64.rpm","util-linux-devel-2.39.1-41.oe2403sp1.aarch64.rpm","util-linux-user-2.39.1-41.oe2403sp1.aarch64.rpm","uuidd-2.39.1-41.oe2403sp1.aarch64.rpm"],"noarch":["util-linux-help-2.39.1-41.oe2403sp1.noarch.rpm"],"src":["util-linux-2.39.1-41.oe2403sp1.src.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2026-3722.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}