External risk intelligence

Pile Insecure Permissions Allow Arbitrary Data Access and Overwriting.

CVE advisorySeverity: CRITICAL (CVSS 9.1)

CVE-2026-107029

The vulnerability affects an Android application (Pile), which is a client-side mobile software package. Such applications are typically installed on end-user devices and are not designed as internet-facing services, gateways, or public-facing infrastructure, making external network exposure to this specific component highly unlikely in normal deployment scenarios.

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 vulnerability involves an Android application that has insecure permissions, potentially allowing unauthorized access to and modification of data. The primary concern at this time is to confirm if this application is in use within the organization to understand its relevance and potential exposure.

App permissions allow unauthorized data access.
Helps understand potential risks to user data.
Confirm app usage to assess organizational exposure.

Attack Path

How an attacker could exploit the issue

An attacker could exploit this vulnerability by leveraging insecure permissions within the Pile application. This exposure allows for unauthorized invocation of an exported component. Once triggered, an attacker could gain the ability to access and modify any data within the application's scope.

No authentication or prior access is needed.
Attacker triggers an exported application component.
Risk of arbitrary data access and overwriting.

Live Threat

Current exploitation, exposure, and threat context

An unauthorized user could access and overwrite any data within the Pile application due to insecure permissions in an exported component. This could impact stored application data under conditions where the component is invoked.

Application data.
Component invocation.
Data corruption or loss.

Operational Fix

Recommended remediation, mitigation, and detection steps

The rubenalfon Pile application's insecure permissions require immediate attention from the team managing mobile application deployments and security for end-user devices. The initial focus should be on identifying all devices with the application installed, assessing potential business criticality or data sensitivity impacted, and confirming the accountable owner before planning remediation actions.

Mobile platform owners should address this.
Verify application reachability and data exposure.
Plan coordinated remediation or removal.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

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Frequently asked questions

What is the rubenalfon Pile application?

Pile is an Android application distributed via platforms like F-Droid. It acts as client-side mobile software that users install on their personal or work devices to manage local tasks. Unlike server-side software that stays running in a data center, this app resides entirely on the mobile device's operating system, processing and storing information locally within the phone's environment.

What does CVE-2026-107029 mean by insecure permissions?

This vulnerability is classified as CWE-732 (Incorrect Permission Assignment for Critical Resource). In the context of this CVE, it means the app fails to properly restrict access to an internal component. Because the component is marked as 'exported' without adequate security controls, the Android operating system may allow other malicious or unauthorized apps on the same device to interact with it inappropriately.

How can an attacker trigger this vulnerability?

An attacker triggers this by invoking the specific exported component within the Pile app. This process does not require the attacker to have special privileges or authentication on the device. Note that simply having the app installed is not enough; the vulnerability specifically requires an external actor to successfully send an instruction to that unsecured component to gain unauthorized access to the app's data.

Do I need to worry about this if I use Pile?

According to Halo Surface Signal, this vulnerability is highly unlikely to be exploited from an external network. Since Pile is a client-side mobile application rather than an internet-facing server or gateway, it is not typically exposed to remote network attacks. The risk is primarily limited to local interactions between apps already present on the same mobile device.

When should I take action for this vulnerability?

You should prioritize this if your organization manages mobile device deployments. First, audit your device inventory to identify where the Pile app is installed. Once you have identified the devices, assess the sensitivity of the data stored within the app. Coordinate with the mobile platform owners to determine if the app is necessary for business operations or if it should be removed to eliminate the risk.

References

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.