Vulnerability Description
Cross-Site Request Forgery (CSRF) vulnerability in the OAuth implementation of the Tuya SDK 6.5.0 for Android and iOS, affects the Tuya Smart and Smartlife mobile applications, as well as other third-party applications that integrate the SDK, allows an attacker to link their own Amazon Alexa account to a victim's Tuya account. The applications fail to validate the OAuth state parameter during the account linking flow, enabling a cross-site request forgery (CSRF)-like attack. By tricking the victim into clicking a crafted authorization link, an attacker can complete the OAuth flow on the victim's behalf, resulting in unauthorized Alexa access to the victim's Tuya-connected devices. This affects users regardless of prior Alexa linkage and does not require the Tuya application to be active at the time. Successful exploitation may allow remote control of devices such as cameras, doorbells, door locks, or alarms.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tuya | Smartlife | 6.3.1 |
| Tuya | Tuya | < 6.5.0 |
| Tuya | Tuya Smart | 6.3.1 |
Related Weaknesses (CWE)
References
- http://tuya.comBroken Link
- https://src.tuya.com/announcement/30Vendor Advisory
FAQ
What is CVE-2025-56400?
CVE-2025-56400 is a vulnerability with a CVSS score of 8.8 (HIGH). Cross-Site Request Forgery (CSRF) vulnerability in the OAuth implementation of the Tuya SDK 6.5.0 for Android and iOS, affects the Tuya Smart and Smartlife mobile applications, as well as other third-...
How severe is CVE-2025-56400?
CVE-2025-56400 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-56400?
Check the references section above for vendor advisories and patch information. Affected products include: Tuya Smartlife, Tuya Tuya, Tuya Tuya Smart.