Veille CVE
CVE-2026-78410
7.8 ÉlevéeDescription
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.
Produits concernés
Scores CVSS
| Version | Score | Source | Vecteur |
|---|---|---|---|
| 3.1 | 7.8 Élevée | secalert@redhat.com | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Faiblesses (CWE)
Références
- https://access.redhat.com/errata/RHSA-2026:63162
- https://access.redhat.com/security/cve/CVE-2026-78410
- https://bugzilla.redhat.com/show_bug.cgi?id=2522684
- https://github.com/util-linux/util-linux/security/advisories/GHSA-rh77-686x-2f2m
- https://github.com/util-linux/util-linux/security/advisories/GHSA-rh77-686x-2f2m