Detection of Error Condition Without Action Affecting libmount-devel package, versions <0:2.40.2-18.0.1.el10_2.20


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.22% (11th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ORACLE10-LIBMOUNTDEVEL-22138910
  • published2 Nov 2026
  • disclosed3 Sept 2026

Introduced: 3 Sep 2026

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

How to fix?

Upgrade Oracle:10 libmount-devel to version 0:2.40.2-18.0.1.el10_2.20 or higher.
This issue was patched in ELSA-2026-93461.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libmount-devel package and not the libmount-devel package as distributed by Oracle. See How to fix? for Oracle:10 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