CVE-2026-19685
Received Received - Intake

NetworkManager Private User Bypass in 802.1X CA Path

Publication date: 2026-08-24

Last updated on: 2026-08-24

Assigner: redhat-SADP

Description
NetworkManager did not apply the private_user restriction to the 802-1x.ca-path and phase2-ca-path directory-valued connection properties. This incomplete fix for CVE-2025-9615 allows an unprivileged local user to point a private WPA-Enterprise (802.1X) connection profile's CA path at an attacker-controlled directory, bypassing server certificate validation and enabling credential theft via a rogue access point.

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Meta Information

Published
2026-08-24
Last Modified
2026-08-24
Generated
2026-08-24
AI Q&A
2026-08-24
EPSS Evaluated
N/A
NVD
CVE-2026-19685
EUVD
EUVD-2026-64957

Affected Vendors & Products

Showing 8 associated CPEs
Vendor Product Version / Range
ubuntu networkmanager 1.54.3
kali networkmanager 1.54.0
redhat networkmanager *
redhat networkmanager From 1.54.0 (inc) to 1.54.3 (inc)
redhat networkmanager From 1.59.2-dev (inc)
redhat networkmanager 1.54.3
redhat networkmanager 1.54.0
redhat networkmanager 1.59.2-dev

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-863 The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

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Executive Summary

This vulnerability in NetworkManager affects WPA-Enterprise (802.1X) network configurations. It allows an unprivileged local user with specific permissions to bypass server certificate validation by manipulating directory paths used for CA certificates. This enables credential theft via rogue access points.

Detection Guidance

Check NetworkManager configuration files for 802.1X profiles with ca-path or phase2-ca-path settings pointing to non-system directories. Review polkit permissions for settings.modify.own. Use commands like 'nmcli connection show' to list profiles and inspect their properties.

Impact Analysis

An attacker could intercept your network credentials during authentication, such as MSCHAPv2 hashes, by setting up a fake access point. This could lead to unauthorized access to your network or services. The attack requires an active local session and specific permissions.

Compliance Impact

This vulnerability could lead to credential theft via rogue access points, potentially exposing sensitive authentication data. For GDPR, this may result in unauthorized access to personal data, violating confidentiality requirements. Under HIPAA, compromised credentials could allow unauthorized access to protected health information, breaching security rules for electronic protected health information (ePHI).

Mitigation Strategies

Avoid using private user profiles for 802.1X connections with ca-path/phase2-ca-path settings. Enable system-wide CA certificates instead. Monitor for unauthorized profile modifications and restrict polkit permissions for settings.modify.own where possible.

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