CVE-2026-4251 CityData CityChat ai.citydata.citychat credentials.json credentials storage
Local attackers can extract credentials from an unprotected JSON file in the CityChat Android app, leading to potential data exposure.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-4251?
CVE-2026-4251 is a low-severity vulnerability in CityData CityChat, published on 16 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Which versions are affected by CVE-2026-4251?
How do I fix CVE-2026-4251?
No fix has been published for CVE-2026-4251 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-4251 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-4251 exists.
Sources
Also known as GHSA-5cm8-hcmp-5vhm.