Aqara Cloud OAuth Authorization Endpoint up to 3.1/9.3 improper validation of unsafe equivalence in input

Summaryinfo

A vulnerability described as critical has been identified in Aqara Cloud OAuth Authorization Endpoint up to 3.1/9.3. The affected element is an unknown function. The manipulation results in improper validation of unsafe equivalence in input. This vulnerability is reported as CVE-2026-50090. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Aqara Cloud OAuth Authorization Endpoint up to 3.1/9.3. It has been classified as critical. Affected is an unknown code block. The manipulation with an unknown input leads to a improper validation of unsafe equivalence in input vulnerability. CWE is classifying the issue as CWE-1289. The product receives an input value that is used as a resource identifier or other type of reference, but it does not validate or incorrectly validates that the input is equivalent to a potentially-unsafe value. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The Aqara Cloud OAuth Authorization Endpoint (open-cn.aqara.com/oauth/authorize) is vulnerable to a redirect bypass due to lax controls on domain matching, which is an instance of "CWE-1289: Improper Validation of Unsafe Equivalence in Input" and has an estimated CVSS of CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N (9.3 Critical).

The weakness was disclosed by Sammy Azdoufal. The advisory is available at github.com. This vulnerability is traded as CVE-2026-50090 since 06/03/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 06/12/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Cloud Software

Vendor

• Aqara

Name

• Cloud OAuth Authorization Endpoint

Version

• 3.0
• 3.1
• 9.0
• 9.1
• 9.2
• 9.3

CPE 2.3info

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CPE 2.2info

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