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I. Basic Information for CVE-2026-30858
Vulnerability Information

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Vulnerability Title
WeKnora: DNS Rebinding Vulnerability in web_fetch Tool Allows SSRF to Internal Resources
Source: NVD (National Vulnerability Database)
Vulnerability Description
WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. Prior to version 0.3.0, a DNS rebinding vulnerability in the web_fetch tool allows an unauthenticated attacker to bypass URL validation and access internal resources on the server, including private IP addresses (e.g., 127.0.0.1, 192.168.x.x). By crafting a malicious domain that resolves to a public IP during validation and subsequently resolves to a private IP during execution, an attacker can access sensitive local services and potentially exfiltrate data. This issue has been patched in version 0.3.0.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
服务端请求伪造(SSRF)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Tencent WeKnora 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tencent WeKnora是中国腾讯(Tencent)公司的一个基于LLM的框架,具有使用RAG范式进行深度文档理解、语义检索和上下文感知答案等功能。 Tencent WeKnora 0.3.0之前版本存在代码问题漏洞,该漏洞源于web_fetch工具存在DNS重绑定,可能导致访问服务器内部资源。
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
TencentWeKnora < 0.3.0 -
II. Public POCs for CVE-2026-30858
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III. Intelligence Information for CVE-2026-30858
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