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TI-2025-35327 Aliases CVE-2025-56400GHSA-6w4j-qm3c-h3vj

Cross-Site Request Forgery (CSRF) vulnerability in the OAuth implementation of the Tuya…

Priority LOW 39CWE-352Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Tampering, Spoofing
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-352 and CWE-384.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00183 7th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:a:tuya:smartlife:6.3.1:*:*:*:*:iphone_os:*:*6.3.1VulnerableTuya
cpe:2.3:a:tuya:smartlife:6.3.4:*:*:*:*:android:*:*6.3.4VulnerableTuya
cpe:2.3:a:tuya:tuya:*:*:*:*:*:android:*:*before 6.5.0VulnerableTuya
cpe:2.3:a:tuya:tuya:*:*:*:*:*:iphone_os:*:*before 6.5.0VulnerableTuya
cpe:2.3:a:tuya:tuya_smart:6.3.1:*:*:*:*:android:*:*6.3.1VulnerableTuya
cpe:2.3:a:tuya:tuya_smart:6.3.1:*:*:*:*:iphone_os:*:*6.3.1VulnerableTuya
  • cpe:2.3:a:tuya:smartlife:6.3.1:*:*:*:*:iphone_os:*:* Versions 6.3.1 Vulnerable ·Tuya
  • cpe:2.3:a:tuya:smartlife:6.3.4:*:*:*:*:android:*:* Versions 6.3.4 Vulnerable ·Tuya
  • cpe:2.3:a:tuya:tuya:*:*:*:*:*:android:*:* Versions before 6.5.0 Vulnerable ·Tuya
  • cpe:2.3:a:tuya:tuya:*:*:*:*:*:iphone_os:*:* Versions before 6.5.0 Vulnerable ·Tuya
  • cpe:2.3:a:tuya:tuya_smart:6.3.1:*:*:*:*:android:*:* Versions 6.3.1 Vulnerable ·Tuya
  • cpe:2.3:a:tuya:tuya_smart:6.3.1:*:*:*:*:iphone_os:*:* Versions 6.3.1 Vulnerable ·Tuya

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-56400
  2. 2026-10-03 Alias added: GHSA-6w4j-qm3c-h3vj

References

Advisory 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences