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OpenAdvisories
High · 7.8 Public exploit CVE-2026-7867 EUVD-2026-54277

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

Published Aug 6, 2026 · Updated Nov 4, 2026 · Assigned by redhat

Vendor: Red Hat Product: Red Hat Enterprise Linux 10 Product: Red Hat Enterprise Linux 10.0 Extended Update Support Product: Red Hat Enterprise Linux 7 Product: Red Hat Enterprise Linux 8 Product: Red Hat Enterprise Linux 9 Package: udisks2 Package: udisks2 Platform: Linux Ecosystem: Debian Ecosystem: Ubuntu

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.

Affected products

VendorProductAffectedFixed
— udisks 2.10.0 – < 2.11.2 2.11.2
Red Hat Red Hat Enterprise Linux 10 — —
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support — —
Red Hat Red Hat Enterprise Linux 7 — —
Red Hat Red Hat Enterprise Linux 8 — —
Red Hat Red Hat Enterprise Linux 9 — —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Debian

Security tracker ↗
ReleasePackageFixed inAdvisory
Debian 14 udisks2 2.11.2-1 —
Debian 13 udisks2 2.10.1-12.1+deb13u2 —

Ubuntu

Security tracker ↗
ReleasePackageFixed inAdvisory
Ubuntu 26.04 LTS udisks2 2.10.91-1ubuntu2.1 USN-8701-1
Ubuntu 24.04 LTS udisks2 2.10.1-6ubuntu1.5 USN-8701-1

Red Hat

Security tracker ↗
ReleasePackageFixed inAdvisory
RHEL 10 udisks2 +5 2.11.0-2.el10_2.1 RHSA-2026:53435
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
RHEL 10.0 EUS udisks2 +5 2.10.90-5.el10_0.3 RHSA-2026:64798

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 10 udisks2 +5 2.11.0-2.el10_2.1.alma.2 ALSA-2026:53435

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 10 udisks2 2.11.0-2.el10_2.1 RLSA-2026:53435

SUSE

Security tracker ↗
ReleasePackageFixed inAdvisory
SLES for SAP 16.0 udisks2 2.10.1-160000.4.1 SUSE-SU-2026:23575-1
SLES 16.0 udisks2 2.10.1-160000.4.1 SUSE-SU-2026:23575-1
SLE Micro 6.2 udisks2 2.10.1-160000.4.1 SUSE-SU-2026:23405-1

openSUSE

Security tracker ↗
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed udisks2 2.11.2-1.1 openSUSE-SU-2026:11501-1
openSUSE Leap 16.1 udisks2 2.11.1-160100.3.1 openSUSE-SU-2026:22231-1
openSUSE Leap 16.0 udisks2 2.10.1-160000.4.1 openSUSE-SU-2026:21704-1

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2023 udisks2 +4 2.10.1-6.amzn2023.0.4 ALAS2023-2026-2104

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 10 udisks2 +5 2.11.0-2.0.1.el10_2.1 ELSA-2026-53435

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Advisories 13

References