CVE-2026-34123

On Tapo C520WS v2, restricted accounts (for example, hub users) are intended to execute only a limited set of low‑sensitivity operations. Due to a logic flaw in the device’s API authorization mechanism, an attacker can craft requests that leverage legitimate “method mapping” behavior to bypass whitelist restrictions, allowing restricted operations to be masked as permitted requests and executed. Successful exploitation may allow an attacker (with access to a restricted account) to execute unauthorized sensitive operations. Depending on the operation invoked, impact could include device resets, unintended configuration changes, or disruption of normal operation, leading to loss of availability and integrity of the device.

CVSS

No CVSS.

References

Link	Resource
https://www.tp-link.com/en/support/download/tapo-c520ws/#Firmware-Release-Notes
https://www.tp-link.com/us/support/download/tapo-c520ws/#Firmware-Release-Notes
https://www.tp-link.com/us/support/faq/5120/

Configurations

No configuration.

History

06 Jun 2026, 00:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-06 00:16

Updated : 2026-06-08 15:01

NVD link : CVE-2026-34123

Mitre link : CVE-2026-34123

CVE.ORG link : CVE-2026-34123

JSON object : View

Products Affected

No product.

CWE

CWE-287

Improper Authentication

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