Unauthorized device control via unvalidated OAuth state
Published Nov 24, 2025 · Updated Jul 5, 2026
Cross-site request forgery in Tuya SDK 6.5.0 for Android and iOS allows remote attackers to gain Alexa control of Tuya-connected devices. The account-linking flow accepts a crafted authorization response without validating the OAuth state parameter, binding the attacker's Alexa account to the victim's Tuya account. A victim must click the attacker's authorization link; the Tuya app need not be active, and the resulting access can control connected cameras, locks, alarms, or doorbells.
Summary
What happened
Cross-site request forgery in Tuya SDK 6.5.0 for Android and iOS allows remote attackers to gain Alexa control of Tuya-connected devices. The account-linking flow accepts a crafted authorization response without validating the OAuth state parameter, binding the attacker's Alexa account to the victim's Tuya account. A victim must click the attacker's authorization link; the Tuya app need not be active, and the resulting access can control connected cameras, locks, alarms, or doorbells.
The record
- CVE
- CVE-2025-56400
- Published
- Nov 24, 2025
- Updated
- Jul 5, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-352, CWE-384, T1204.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 24, 2025CVE publishedPublication date reported by the CVE source.
- Jul 5, 2026Record updatedLatest update available in the CVE record.
Exploitability
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Attacks
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Technologies
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