Cloud MQTT broker contains a broken access control vulnerability in a proxy
topic used by authenticated Tapo devices to request service tokens. The broker
does not verify that the device ID supplied in a proxy request belongs to the
authenticated device. An attacker who owns a Tapo device and knows another
device's ID may obtain a device token scoped to the target device and use it to
upload attacker-controlled content to the target user's Tapo Cloud storage. The
content may then be presented in the Tapo app as a legitimate event.
Successful
exploitation may allow an attacker to upload attacker-controlled content that
is presented to a target user as a legitimate Tapo event, retrieve internal
service information through crafted proxy requests, or abuse Tapo Cloud
outbound request capability in activity that could affect service
availability.
Analysis
Analysis and contextual insights are available on OpenCVE Cloud.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| TP-Link Systems Inc. | Tapo Cloud Service | unaffected |
|
No data.
No data.
No data available yet.
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
Sign in to view the affected projects.
No advisories yet.
| Link | Providers |
|---|---|
| https://www.tp-link.com/us/support/faq/5370/ |
|
Tue, 03 Nov 2026 19:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The Tapo Cloud MQTT broker contains a broken access control vulnerability in a proxy topic used by authenticated Tapo devices to request service tokens. The broker does not verify that the device ID supplied in a proxy request belongs to the authenticated device. An attacker who owns a Tapo device and knows another device's ID may obtain a device token scoped to the target device and use it to upload attacker-controlled content to the target user's Tapo Cloud storage. The content may then be presented in the Tapo app as a legitimate event. Successful exploitation may allow an attacker to upload attacker-controlled content that is presented to a target user as a legitimate Tapo event, retrieve internal service information through crafted proxy requests, or abuse Tapo Cloud outbound request capability in activity that could affect service availability. | |
| Title | Broken Access Control Leading to Cross-Device Token Issuance in Tapo Cloud MQTT Proxy | |
| Weaknesses | CWE-862 | |
| References |
| |
| Metrics |
cvssV4_0
|
Subscriptions
No data.
MITRE
Status: PUBLISHED
Assigner: TPLink
Published:
Updated: 2026-11-03T19:41:03.841Z
Reserved: 2026-10-05T21:36:14.670Z
Link: CVE-2026-105821
Vulnrichment
No data.
NVD
No data.
Redhat
No data.
OpenCVE Enrichment
No data.