---
id: "CVE-2026-49903"
kind: "vulnerability"
aliases: ["CVE-2026-49903"]
title: "Android: a dump method lets a privileged app write secure display settings"
severity: "low"
cvss: null
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["android", "automotive", "cluster-display", "infrastructure"]
not_affected_if: ["default-permissions", "no-privileged-app-installed"]
published_at: "2026-11-02T21:17:31+00:00"
first_seen_at: "2026-11-02T21:35:41+00:00"
updated_at: "2026-11-02T21:37:19+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49903", "first_seen_at": "2026-11-02T21:35:41+00:00"}]
---

# Android: a dump method lets a privileged app write secure display settings

A method on Android's cluster rendering service accepts writes to a global display setting that normally needs a higher permission. An app holding the DUMP and PACKAGE_USAGE_STATS permissions can use it to create persistent system overlay displays and inject key events into the cluster UI.

_Summary, check and fix written by a model from the sources; labelled as such._

## Timeline

- 2026-11-02T21:35:41+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-49903

## From the sources

The `ClusterRenderingService.dump()` method, accessible to processes holding `android.permission.DUMP` and `android.permission.PACKAGE_USAGE_STATS`, acts as a confused deputy. It allows attackers to write arbitrary values to `Settings.Global.OVERLAY_DISPLAY_DEVICES`, an operation normally requiring `android.permission.WRITE_SECURE_SETTINGS`, enabling persistent creation of system overlay displays and injection of key events into the cluster UI.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_