External risk intelligence

AnyMemo CardProvider Insecure Permissions Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 9.1)

CVE-2026-107021

The vulnerability exists in a local Android application (AnyMemo) within a content provider component. This is a client-side, local application component that is not designed for public internet exposure, edge services, or network-accessible management.

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 concerns a security vulnerability in a component of a local Android application that could allow unauthorized access to sensitive user data. The primary concern is to confirm if this application is in use and assess any potential exposure.

  • Data can be read without permission.
  • Confirms use of specific application.
  • Assess relevance to confirm exposure.

Attack Path

How an attacker could exploit the issue

An attacker can exploit this vulnerability by targeting the CardProvider content provider within the AnyMemo application. This component, due to insecure permissions, allows unauthorized access to sensitive user data. The vulnerability can lead to the arbitrary reading of flashcards stored in the user's memorization database.

  • Requires application access.
  • Triggered by reading flashcards.
  • Risk of data confidentiality loss.

Live Threat

Current exploitation, exposure, and threat context

Insecure permissions within the AnyMemo application's CardProvider component could allow unauthorized access to a user's entire flashcard database. This could occur when an attacker is able to exploit these permission flaws to read the stored flashcards.

  • User's flashcard data.
  • Arbitrary reading of flashcards.
  • Unauthorized data access.

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability resides within a local Android application, making it a client-side issue. The first practical move is to identify which devices run the AnyMemo application, assess their business criticality, and determine the owner of those devices or the application itself. Planning remediation should then be based on this risk assessment and owner collaboration.

  • Application owners should address this.
  • Verify AnyMemo app deployment and reachability.
  • Plan remediation based on identified risk.

Supplementary metadata

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.

Frequently asked questions

What is AnyMemo and how is it used?

AnyMemo is an Android application designed for memorization and learning using digital flashcards. Users rely on it to organize and store study materials, which are saved in a local database on their device to facilitate repetitive learning and retention.

What does CWE-926 mean for CVE-2026-107021?

CWE-926 refers to Improper Export of Android Application Components. In the context of CVE-2026-107021, it means the CardProvider component was not properly locked down, accidentally allowing other apps on the same device to read the database without permission.

How can an attacker trigger this vulnerability?

The flaw is triggered by interacting with the CardProvider component directly. It does not occur through normal use of the app's interface; rather, it requires a separate, malicious application to be present on the same device to query the exposed component.

Is this CVE a risk if my device is not internet-facing?

According to Halo Surface Signal, this is considered very unlikely to be an external risk. Because AnyMemo is a local Android application, the component is not designed to be accessed over the internet or through edge services, limiting the threat.

What should I do if I have AnyMemo installed?

Begin by identifying which devices or users have the application installed. Since this is a client-side issue, assess if the data stored in your flashcards is sensitive, then coordinate with the device owners to monitor for updates or official guidance.

References