{"id":"CVE-2026-49903","kind":"vulnerability","aliases":["CVE-2026-49903"],"related":[],"title":"Android: a dump method lets a privileged app write secure display settings","description":"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.","summary":"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.","severity":"low","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["android","automotive","cluster-display","infrastructure"],"not_affected_if":["default-permissions","no-privileged-app-installed"],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-02T21:17:31+00:00","first_seen_at":"2026-11-02T21:35:41+00:00","triaged_at":"2026-11-02T21:37:19+00:00","updated_at":"2026-11-02T21:37:19+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-11-02T21:37:19Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Android: a dump method lets a privileged app write secure display settings","impact":"medium","summary":"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.","audience":"everyone","category":"infrastructure","nicknames":[],"who_cares":["android","automotive","cluster-display"],"confidence":0.6,"fix_status":"unknown","needs_auth":"yes","worst_case":"Attacker app creates persistent overlay displays and injects key events","analyst_note":"Confirm affected Android versions and whether a vendor patch or Android Security Bulletin entry exists; the NVD entry has no fix data here.","how_to_check":"unknown","plain_action":"","needs_analyst":true,"not_affected_if":["no-privileged-app-installed","default-permissions"],"who_is_affected":"Only apps that already hold the android.permission.DUMP and android.permission.PACKAGE_USAGE_STATS permissions can reach the flaw, which are not normally granted to ordinary apps. Whether a given device or vehicle build is exposed depends on the vendor's firmware, which the sources do not state.","user_interaction":"no","needs_special_setup":"yes","severity_if_unknown":"low"},"cost_usd":0.000669,"input_tokens":4195,"output_tokens":498,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2026':14A,17A '-49903':15A,18A 'accept':33B 'access':76C 'act':85C 'allow':91C 'android':1A,19B,28B 'android.permission.dump':80C 'android.permission.package':82C 'android.permission.write':105C 'app':8A,47B 'arbitrari':95C 'attack':92C 'automot':20B 'cluster':22B,30B,71B,122C 'cluster-display':21B 'clusterrenderingservice.dump':74C 'confus':88C 'creat':60B 'creation':110C 'cve':13A,16A 'deputi':89C 'devic':100C 'display':11A,23B,38B,64B,99C,114C 'dump':3A,50B 'enabl':108C 'event':68B,119C 'global':37B 'higher':44B 'hold':48B,79C 'infrastructur':24B 'inject':66B,116C 'key':67B,118C 'let':5A 'method':4A,26B,75C 'need':42B 'normal':41B,103C 'oper':102C 'overlay':63B,113C 'packag':52B 'permiss':45B,55B 'persist':61B,109C 'privileg':7A 'process':78C 'render':31B 'requir':104C 'secur':10A,106C 'servic':32B 'set':12A,39B,107C 'settings.global.overlay':98C 'stat':54B,84C 'system':62B,112C 'ui':72B,123C 'usag':53B,83C 'use':57B 'valu':96C 'write':9A,34B,94C","nicknames":[],"mitigations":[],"who_affected":"Only apps that already hold the android.permission.DUMP and android.permission.PACKAGE_USAGE_STATS permissions can reach the flaw, which are not normally granted to ordinary apps. Whether a given device or vehicle build is exposed depends on the vendor's firmware, which the sources do not state.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"everyone","plain_action":null,"pkeys":[],"ptokens":[],"labels":["android","automotive","clusterdisplay","infrastructure","low"],"first_public_at":"2026-11-02T21:17:31+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-49903","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-49903","severity":null,"published_at":"2026-11-02T21:17:31+00:00","modified_at":"2026-11-02T21:17:31+00:00","first_seen_at":"2026-11-02T21:35:41+00:00","fetched_at":"2026-11-02T21:35:41+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}