CVE-2026-78410: Util-linux: util-linux: restricted bind mounts do not pin the source, allowing x-mount.owner/group/mode redirection

Overview

Severity

High (CVSS 7.8)

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U

Exploit Status

Not Exploited

Patch Tuesday

2026-Sep

Released

2026-09-07

EPSS Score

0.10% (percentile: 0.7%)

Affected Products (1)

Other

• 21562-17084

Security Updates (1)

• Security Update

Revision History

• 2026-09-07: Information published.