CVE-2026-78410 — Vulnerability intelligence
Red Hat — Red Hat Enterprise Linux 10, Red Hat Hardened Images, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4, Red Hat OpenShift Container Platform 5
Published:
- CVSS
- 7.8
- CISA KEV
- Not listed; not proof of no exploitation
Original source text (not a translation)
A flaw was found in util-linux. Restricted bind mounts take the source path from fstab but do not pin that source before the privileged mount. A local unprivileged user who can replace the authorized source or a writable ancestor can redirect SUID mount(8) to bind another host directory. If the fstab entry also sets X-mount.owner, X-mount.group, or X-mount.mode, root then changes ownership or mode on that redirected inode.