Improper Privilege Management Affecting util-linux package, versions <2.41.5-0+deb13u1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.13% (3rd percentile)

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  • Snyk IDSNYK-DEBIAN13-UTILLINUX-17366433
  • published17 Jun 2026
  • disclosed14 Oct 2026

Introduced: 17 Jun 2026

CVE-2026-53614  (opens in a new tab)
CWE-269  (opens in a new tab)
CWE-807  (opens in a new tab)

How to fix?

Upgrade Debian:13 util-linux to version 2.41.5-0+deb13u1 or higher.

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 is a random collection of Linux utilities. In util-linux 2.39.1 through 2.41.4 and 2.42 through 2.42.1, the SUID mount utility reads the attacker-controlled LIBMOUNT_FORCE_MOUNT2 environment variable with getenv(), allowing a local low-privileged user to force the non-atomic legacy bind-mount path. With an /etc/fstab bind mount authorized by user or users and protected by nosuid, noexec, or nodev, an attacker can race the window between the initial bind mount and the remount that applies those security flags and execute a SUID program from the temporarily unprotected mount, potentially gaining root privileges. This issue is fixed in 2.41.5 and 2.42.2.

CVSS Base Scores

version 3.1