CVE-2026-4251: Citydata Citychat

Low severity, CVSS 2.5. EPSS: 0.1% chance of exploitation in the next 30 days.

A vulnerability was determined in CityData CityChat up to 0.12.6 on Android. Affected by this vulnerability is an unknown functionality of the file resources/assets/flutter_assets/assets/credentials.json of the component ai.citydata.citychat. Executing a manipulation can lead to unprotected storage of credentials. The attack requires local access. A high complexity level is associated with this attack. The exploitation appears to be difficult. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• Citydata Citychat: version 0.12.0 only; version 0.12.1 only; version 0.12.2 only; version 0.12.3 only; version 0.12.4 only; version 0.12.5 only; …

Published 2026-03-16. Last modified 2026-06-17.