External risk intelligence

Aqara Gateway Hardcoded OAuth Credentials Lead to Unauthenticated Remote Takeover

CVE advisorySeverity: CRITICAL (CVSS 9.1)

CVE-2026-50083

A hard-coded OAuth client credential in the Aqara IAM/SSO Gateway could allow unauthenticated remote takeover of devices, especially when combined with other vulnerabilities. This critical flaw exposes a potential entry point for attackers.

5Halo Surface Signal

External exposure likelihood

Halo Surface Signal score for CVE-2026-50083

The vulnerability affects an IAM/SSO Gateway, which is designed as an internet-facing service for managing identity and authentication. Such gateways are typically exposed to the public internet to facilitate remote authentication, making the vulnerable component directly reachable in its normal, intended deployment pattern.

PCI scan relevance

PCI Relevance for CVE-2026-50083

Yes

CVE-2026-50083 — Halo PCI Relevance: Yes. Under typical PCI ASV external scan criteria, this issue may be flagged for scan prioritization.

This CVE involves the use of hard-coded credentials in the Aqara IAM/SSO Gateway, which can lead to unauthenticated remote takeover of devices. Such vulnerabilities typically cause automatic failures in PCI ASV scans.

Scan-prioritization guidance only—not a PCI DSS certification or ASV attestation.

Horizon Alert

Summary of the vulnerability and why it matters

A security vulnerability has been identified in Aqara's IAM/SSO Gateway, specifically concerning the use of hard-coded credentials. This flaw, when potentially combined with other related issues, could allow for remote takeover of affected devices without authentication. The main concern is to confirm if this technology is in use within the organization and to what extent it may be exposed.

Hard-coded credentials allow unauthorized access.
Critical flaw could lead to device takeover.
Confirm if Aqara IAM/SSO Gateway is used.

Attack Path

How an attacker could exploit the issue

An attacker could leverage the hardcoded OAuth credentials within the Aqara IAM/SSO Gateway to gain unauthorized access. This gateway, exposed to the network, is designed for identity and authentication management, making it a potential entry point. By exploiting this hard-coded credential vulnerability, particularly when combined with other related issues, an attacker could achieve a complete remote takeover of affected devices without needing any prior authentication.

No authentication is required to access.
An attacker triggers the vulnerability remotely.
Risk of unauthenticated device takeover.

Live Threat

Current exploitation, exposure, and threat context

When combined with other vulnerabilities, this hardcoded credential issue in the Aqara IAM/SSO Gateway could enable unauthenticated, remote takeover of affected devices. This could potentially impact the security and control of devices managed by the gateway.

Gateway device control.
Remote, unauthenticated access.
Full device takeover.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

This critical vulnerability in the Aqara IAM/SSO Gateway requires immediate attention from teams managing network-accessible identity and authentication infrastructure. The first practical step is to identify all instances of this gateway, assess their exposure and business criticality, and confirm the accountable owner. Subsequently, a remediation plan should be developed based on the identified risks, which may involve vendor coordination or patching during planned maintenance windows.

Platform or security teams own the issue.
Verify gateway reachability and business impact.
Plan vendor-assisted remediation or mitigation.

Frequently asked questions

What is the Aqara IAM/SSO Gateway?

The Aqara IAM/SSO Gateway (gw-builder.aqara.com) is a component used to manage identity and authentication for connected environments. It acts as a bridge that handles how users and devices verify their identity, which is essential for secure access control. Because it manages authentication flow, it is a critical piece of infrastructure that connects internal systems to external services.

What does CWE-798 mean for CVE-2026-50083?

CWE-798 refers to the use of hard-coded credentials. In this specific case, the software contains fixed, unchangeable authentication secrets—like a username or password—embedded directly into the code. Because these credentials cannot be rotated or removed by an administrator, anyone who discovers these hidden keys can use them to bypass standard security checks and impersonate authorized entities.

How is this vulnerability triggered by an attacker?

An attacker can trigger this vulnerability remotely over a network by using the hard-coded credentials to authenticate as a legitimate user. It is important to note that this flaw does not require the attacker to have any prior access or special privileges. However, the risk is significantly elevated when this issue is combined with other vulnerabilities in the gateway, which can lead to a full takeover of the device.

Do I need to worry if my gateway is internal?

Yes, it remains a concern. According to Halo Surface Signal, this gateway is typically designed to be internet-facing to facilitate remote authentication, which makes it a highly accessible target. Even if you believe a device is internal, any path that allows network communication with this gateway could be leveraged. You should verify if your instances are reachable and assess their role in your environment's authentication chain.

What should I do first to address this?

Start by performing an inventory to locate every instance of the Aqara IAM/SSO Gateway within your infrastructure. Once identified, confirm who is responsible for these systems and assess their business criticality. Since this involves central authentication, coordinate with your security or platform teams to plan for vendor-provided updates or appropriate mitigation strategies while minimizing disruption to your services.

References

Written by Nicholas Merritt

External-surface CVE analysis and Halo Surface Signal prioritization for Halo Threat Intelligence.