CVE-2026-96424
Received Received - Intake

Incorrect DBus Policy in Lomiri Upload Manager Allows Root File Read

Publication date: 2026-10-16

Last updated on: 2026-10-16

Assigner: GitLab Inc.

Description
Incorrect DBus policy for lomiri-upload-manager (part of lomiri-download-manager) allows arbitrary user to read arbitrary file as root over DBus

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Meta Information

Published
2026-10-16
Last Modified
2026-10-16
Generated
2026-10-16
AI Q&A
2026-10-16
EPSS Evaluated
N/A
NVD
CVE-2026-96424
EUVD
EUVD-2026-102931

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
UBports lomiri-download-manager 0.1.0

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-732 The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.

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Executive Summary

CVE-2026-96424 is a high-severity vulnerability in lomiri-download-manager caused by incorrect DBus policy configuration. It allows unconfined applications to interact with the system-level instance of lomiri-download-manager, which runs as root. This enables arbitrary file reads as root over DBus.

Detection Guidance

Check if lomiri-download-manager is installed and its version is below 0.3.3. Run: dpkg -l lomiri-download-manager or apt list --installed | grep lomiri-download-manager. If installed, verify DBus policy files for com.lomiri.applications.Downloader.conf and com.lomiri.applications.Uploader.conf in /usr/share/dbus-1/system-services/ or /etc/dbus-1/system.d/. Look for overly permissive rules allowing root access.

Impact Analysis

An attacker could exploit this to read sensitive files on your system as root, execute arbitrary root commands after a download completes, or gain elevated privileges. This could lead to complete system compromise if malicious files or commands are executed.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating GDPR's data protection requirements and HIPAA's security rules for protected health information. Organizations may face compliance violations if exploited.

Mitigation Strategies

Update lomiri-download-manager to version 0.3.3 or later. For Ubuntu Touch, upgrade to 24.04-2.1 or 24.04-1.5. If updating is not immediately possible, restrict DBus policies manually by editing the configuration files mentioned in the patch commit to remove permissive rules.

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