Executive brief
The Aqara IAM/SSO Gateway, a service used for managing user identities and single sign-on for Aqara's smart home ecosystem, contains a security flaw that allows for unauthorized web redirects. An attacker can use this to create deceptive links that appear to be official Aqara pages but instead send users to malicious websites. This can be used to facilitate phishing attacks or potentially steal login credentials and session tokens.
Technical details
An open redirect vulnerability (CWE-601) exists in the Aqara IAM/SSO Gateway at the /iam/ucauth/skipToUcAuthUrl endpoint. The 'callBackUrl' parameter does not implement a proper allowlist, allowing an unauthenticated remote attacker to redirect users to arbitrary external domains. When a user interacts with a specially crafted link and authenticates, the gateway issues an HTTP 302 redirect to the attacker-controlled URL. This redirect may include sensitive SSO parameters, such as authentication codes or tickets, in the URL string, leading to potential account compromise.
Affected products
- Aqara IAM/SSO Gateway
Timeline
- 2026-03-13: other: Vulnerability discovered and initial vendor outreach
- 2026-04-20: patched: Vendor stated the issue has been fixed
- 2026-06-12: disclosed: Public disclosure and CVE assignment