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CVE-2026-78410

7.8 high SSVC exploitation: poc Published
NVD · CVE.org

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.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 3

  1. StatusAwaiting Analysis → PublishedNVD modified 2026-10-21 17:51
  2. StatusPublished → Awaiting AnalysisNVD modified 2026-10-21 18:17
  3. First seenCVSS 7.8 · red hatNVD modified 2026-10-21 17:51

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 5