Detection of Error Condition Without Action Affecting util-linux package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.18% (8th percentile)

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  • Snyk IDSNYK-DEBIAN13-UTILLINUX-19513279
  • published3 Sept 2026
  • disclosed3 Sept 2026

Introduced: 3 Sep 2026

NewCVE-2026-76642  (opens in a new tab)
CWE-390  (opens in a new tab)

How to fix?

There is no fixed version for Debian:13 util-linux.

NVD Description

Note: Versions mentioned in the description apply only to the upstream util-linux package and not the util-linux package as distributed by Debian. See How to fix? for Debian:13 relevant fixed versions and status.

util-linux versions through 2.41.5 and 2.42.2 fail to check mount helper exit status before running post-mount hooks, allowing unprivileged users to execute privileged operations on pre-existing filesystems. Attackers can exploit X-mount.idmap or X-mount.owner hooks to clone filesystems with inherited suid bits or modify target inode permissions after a helper fails, achieving privilege escalation.

CVSS Base Scores

version 3.1