External risk intelligence

Missing Permission Check Allows Sensitive Data Monitoring on Wearables

CVE advisorySeverity: CRITICAL (CVSS 10.0)

CVE-2026-49883

The vulnerability involves a missing permission check within a local device component (PermissionsManager.java) on a wearable platform. It is limited to local information disclosure on the device itself and does not involve network-exposed services, web interfaces, or remote communication channels.

Information Disclosure

Halo Surface Signal: 1 out of 5 — much less likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

This advisory details a security vulnerability in a component that manages device permissions. The issue could allow sensitive device state data to be monitored without requiring user interaction or advanced privileges, potentially leading to local information disclosure. The main concern is confirming relevance and exposure.

Sensitive device data could be viewed.
Matters for protecting local device information.
Confirm relevance and exposure.

Attack Path

How an attacker could exploit the issue

An attacker could gain access to sensitive device information by exploiting a missing permission check in the PermissionsManager.java component. This vulnerability allows for local information disclosure without requiring any special privileges or user interaction, potentially exposing device state data to unauthorized parties.

No special privileges needed.
Vulnerable component checks permissions improperly.
Local information disclosure risk.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could allow an attacker to monitor sensitive device state data on the local device due to a missing permission check. User interaction is not required for this local information disclosure.

Sensitive device state data
Missing permission check
Local information disclosure

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability, residing in the PermissionsManager.java component on wearable devices, presents a critical risk of local information disclosure without requiring user interaction or additional privileges. Identifying affected devices, confirming their business criticality and network reachability, and then coordinating with the appropriate platform or application owners for remediation planning is the immediate priority.

Platform and application owners should manage.
Verify device reachability and criticality.
Plan for risk-based remediation.

Supplementary metadata

CVSS vector

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Frequently asked questions

What is the PermissionsManager component in Android wearables?

PermissionsManager is a core system component in Android wearable platforms responsible for enforcing access controls. It functions as a gatekeeper that ensures apps and services only access the sensitive device data or hardware capabilities they are authorized to use. In this context, it manages the policies that protect your device's state information from unauthorized internal processes.

How does CVE-2026-49883 lead to information disclosure?

This vulnerability is an authorization weakness. Specifically, the checkReadPermission function fails to verify if a requester has the necessary rights before granting access. Because this security check is missing, the system effectively treats unauthorized requests as authorized, allowing data to be exposed without the usual validation steps required by the operating system.

Does triggering this bug require specific user actions?

No. The vulnerability does not require any user interaction, such as clicking a link or granting permission, to be triggered. It also does not require the attacker to possess elevated administrative or root privileges. If a process on the device attempts to read the protected state data, the system will provide it automatically due to the missing permission check.

Is my device vulnerable if it is not connected to the internet?

Halo Surface Signal indicates that this issue is primarily a local concern on the device itself. Because the vulnerability is rooted in a local component rather than a network-exposed service or web interface, the risk is not tied to your device's external connectivity. It primarily affects the security posture of the internal device environment.

What should I do if I am running this technology?

Start by identifying which of your wearable devices utilize the affected software component. Since this is a platform-level issue, coordinate with your internal device management teams to assess the business criticality of those assets. Focus on planning a risk-based remediation path, which typically involves coordinating with the platform vendor to obtain and apply the necessary security updates.

References

source.android.com/docs/security/bulletin/wear/2026/2026-09-01

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.