CVE-2026-7867

Udisks2: udisks2: local privilege escalation via as-user option spoofing

State: Published
Severity: 7.8 High
Published: Aug 6, 2026
Updated: Sep 8, 2026
Reserved: May 5, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	redhat

Weaknesses

CWE-863 Incorrect Authorization

Affected Products

Product	Versions
udisks	2.10.0 to before 2.11.2Affected
Red Hat Enterprise Linux 10Red Hat	0:2.11.0-2.el10_2.1 and laterNot affected
Red Hat Enterprise Linux 10.0 Extended Update SupportRed Hat	0:2.10.90-5.el10_0.3 and laterNot affected
Red Hat Enterprise Linux 7Red Hat
Red Hat Enterprise Linux 8Red Hat
Red Hat Enterprise Linux 9Red Hat

References

RHSA-2026:53435vendor-advisory
RHSA-2026:64798vendor-advisory
https://access.redhat.com/security/cve/CVE-2026-7867vdb-entry
RHBZ#2466747issue-tracking
https://github.com/storaged-project/udisks/releases/tag/udisks-2.11.2
https://github.com/storaged-project/udisks/security/advisories/GHSA-j42g-v9jw-6ph3

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