CVE-2026-34121

An authentication bypass vulnerability within the HTTP handling of the DS configuration service in TP-Link Tapo C520WS v2.6 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.

Score
CVSS 3.1 8.8 High
Status
Analyzed - f23511db-6c3e-4e32-a477-6aa17d310630
Published
2026-04-02
Last modified
2026-04-02
Weaknesses
CWE-287

Affected products

References

 
 
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