CVE-2026-30858
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.
How to fix
- tencent weknora0.3.0 or later
- github.com/Tencent/WeKnora0.3.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| tencent weknora | v < 0.3.0 | 0.3.0 |
| github.com/Tencent/WeKnoraGo | v < 0.3.0, No range specified | 0.3.0 |
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Attack Surface Management
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