CVE-2026-7867: Red Hat Enterprise Linux 10

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

A flaw was found in udisks2. A local attacker with an active console session can exploit insufficient authorization checking on the 'as-user' option in the org.freedesktop.UDisks2.Filesystem.Mount() D-Bus method. This allows the attacker to spoof the 'as-user' parameter, mounting filesystems on behalf of arbitrary users, including privileged accounts. This can lead to local privilege escalation through mount point injection and manipulation of the mount namespace visible to privileged users.

Affected products

• Red Hat Red Hat Enterprise Linux 10: before 0:2.11.0-2.el10_2.1 (fixed in 0:2.11.0-2.el10_2.1)
• Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support: before 0:2.10.90-5.el10_0.3 (fixed in 0:2.10.90-5.el10_0.3)
• Red Hat Red Hat Enterprise Linux 7
• Red Hat Red Hat Enterprise Linux 8
• Red Hat Red Hat Enterprise Linux 9

Published 2026-08-06. Last modified 2026-09-08.