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I. Basic Information for CVE-2026-34121
Vulnerability Information

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Vulnerability Title
Authentication Bypass in DS Configuration Service via HTTP Request Parsing Differential of TP-Link Tapo C520WS
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
认证机制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
TP-Link Tapo C520WS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TP-Link Tapo C520WS是中国普联(TP-Link)公司的一个WiFi摄像头。 TP-Link Tapo C520WS v2.6版本存在安全漏洞,该漏洞源于DS配置服务的HTTP处理中身份验证检查期间JSON请求的解析和授权逻辑不一致,可能导致身份验证绕过,进而未经授权修改设备状态。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
TP-Link Systems Inc.Tapo C520WS v2.6 0 ~ 1.2.4 Build 260326 Rel.24666n -
II. Public POCs for CVE-2026-34121
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III. Intelligence Information for CVE-2026-34121
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