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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tencent | Weknora | < 0.3.0 |
Related Weaknesses (CWE)
References
- https://github.com/Tencent/WeKnora/security/advisories/GHSA-h6gw-8f77-mmmpExploitVendor Advisory
FAQ
What is CVE-2026-30858?
CVE-2026-30858 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 unauthenticat...
How severe is CVE-2026-30858?
CVE-2026-30858 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-30858?
Check the references section above for vendor advisories and patch information. Affected products include: Tencent Weknora.