Copyright © 2012 Red Hat, Inc. All rights reserved. Important 2026-08-06T00:00:00 udisks2: udisks2: Local Privilege Escalation via as-user option spoofing 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CWE-863

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.

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.

This Important flaw in udisks2 allows a local attacker with an active console session to achieve privilege escalation. By spoofing the 'as-user' option in the D-Bus mount method, an attacker can mount filesystems on behalf of other users, including privileged accounts, leading to mount point injection and manipulation of the mount namespace. Red Hat would like to thank Azizcan Daştan (azqzazq1) and Özlem Ozan (oz7oz7) for reporting this issue. Red Hat Enterprise Linux 10 2026-08-11T00:00:00Z RHSA-2026:53435 udisks2-0:2.11.0-2.el10_2.1 Red Hat Enterprise Linux 7 Not affected udisks2 Red Hat Enterprise Linux 8 Not affected udisks2 Red Hat Enterprise Linux 9 Not affected udisks2 https://www.cve.org/CVERecord?id=CVE-2026-7867 https://nvd.nist.gov/vuln/detail/CVE-2026-7867 https://github.com/storaged-project/udisks/releases/tag/udisks-2.11.2 https://github.com/storaged-project/udisks/security/advisories/GHSA-j42g-v9jw-6ph3