CVE-2026-4251 | BDVDB-2026-320753 Detail

CityDataCityChat

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.

Impact#

Per CVSS v3.1: confidentiality impact low, integrity impact none, availability impact none. Attack vector: local.

Weaknesses#

CWE-256 Unprotected Storage of Credentials
CWE-255 Credentials Management

References#

Exploit#

https://www.notion.so/Google-Cloud-Service-Account-Key-Exposure-Leading-to-Dialogflow-Data-Access-in-ai-citydata-citychat-3192de3f97fb80ca9739ebc6329c8449?source=copy_link

History#

Version 12026-03-16Record published in the CVE List.

Published

Published: 2026-03-16
Last modified: 2026-03-16

Vendor information

Vendor: CityData
Product: CityChat

All CityData vulnerabilities

Score

2.5 Low

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 1.0.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
0.12.0
Fixed
Not stated
Vulnerable
0.12.1
Fixed
Not stated
Vulnerable
0.12.2
Fixed
Not stated
Vulnerable
0.12.3
Fixed
Not stated
Vulnerable
0.12.4
Fixed
Not stated
Vulnerable
0.12.5
Fixed
Not stated
Vulnerable
0.12.6
Fixed
Not stated

Scoring System

CVSS v4.0

2.0 Low

CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P

Metric breakdown
Attack Vector	Local
Attack Complexity	High
Attack Requirements	None
Privileges Required	Low
User Interaction	None
Vulnerable System Confidentiality	Low
Vulnerable System Integrity	None
Vulnerable System Availability	None
Subsequent System Confidentiality	None
Subsequent System Integrity	None
Subsequent System Availability	None

CVSS v3.1

2.5 Low

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R

Metric breakdown
Attack Vector	Local
Attack Complexity	High
Privileges Required	Low
User Interaction	None
Scope	Unchanged
Confidentiality	Low
Integrity	None
Availability	None

CVSS v3.0

2.5 Low

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R

Metric breakdown
Attack Vector	Local
Attack Complexity	High
Privileges Required	Low
User Interaction	None
Scope	Unchanged
Confidentiality	Low
Integrity	None
Availability	None

CVSS v2

1.0 Low

AV:L/AC:H/Au:S/C:P/I:N/A:N/E:POC/RL:ND/RC:UR

Metric breakdown
Access Vector	Local
Access Complexity	High
Authentication	Single
Confidentiality Impact	Partial
Integrity Impact	None
Availability Impact	None

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).