CVE-2026-78410
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.
Scoring
- Severity
- HIGH
- CVSS base score
- 7.8
- CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS probability
- 0.10%
- CWE
- CWE-367
- Published
- 2026-09-02
- Last modified
- 2026-09-04
Affected products
- Red Hat Red Hat Hardened Images
Weakness type
Related vulnerabilities
- CVE-2026-88924 — Gvfs: gvfs-admin socket ownership race permits local root
- CVE-2026-87996 — Open WebUI: SSRF into internal services via DNS rebinding in the Playwright web loader
- CVE-2026-79968 — Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to...
- CVE-2026-79730 — Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to...
- CVE-2026-87523 — Race condition in DataTransfer in Google Chrome prior to 153.0.8010.36 allowed a remote attacker...
- CVE-2026-87457 — Race condition in Updater in Google Chrome on on Windows prior to 153.0.8010.36 allowed a local...
- CVE-2026-87433 — Race condition in FileAPI in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had...
- CVE-2026-87554 — Race condition in Chromoting in Google Chrome on on Windows prior to 153.0.8010.36 allowed a local...