CVE-2026-34121
highAn authentication bypass vulnerability within the HTTP handling of the DS configuration service in TP-Link Tapo C520WS v2.6 and C210 v3 was identified, due to…
Vendor / product: Tp-link — tapo c520ws firmware
An authentication bypass vulnerability within the HTTP handling of the DS configuration service in TP-Link Tapo C520WS v2.6 and C210 v3 was identified, due to inconsistent parsing and authorization logic in JSON requests during authentication check. An unauthenticated attacker can append an authentication-exempt action to a request containing privileged DS do actions, bypassing authorization checks. Successful exploitation allows unauthenticated execution of restricted configuration actions, which may result in unauthorized modification of device state.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Affected products
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
References
- https://www.tp-link.com/en/support/download/tapo-c520ws/#Firmware-Release-Notes f23511db-6c3e-4e32-a477-6aa17d310630
- https://www.tp-link.com/us/support/download/tapo-c210/v3.60/#Firmware-Release-Notes f23511db-6c3e-4e32-a477-6aa17d310630
- https://www.tp-link.com/us/support/download/tapo-c520ws/#Firmware-Release-Notes f23511db-6c3e-4e32-a477-6aa17d310630
- https://www.tp-link.com/us/support/faq/5047/ f23511db-6c3e-4e32-a477-6aa17d310630