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TI-2026-23687 Aliases CVE-2026-30858GHSA-h6gw-8f77-mmmp

WeKnora: DNS Rebinding Vulnerability in web_fetch Tool Allows SSRF to Internal Resources

Priority HIGH 66CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-918 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00407 35th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed WeKnora (Tencent): 0.3.0github.com/Tencent/WeKnora (Go): 0.3.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
TencentWeKnorabefore 0.3.00.3.0Patch availableCNA
—github.com/Tencent/WeKnora (Go)before 0.3.00.3.0Patch availableGHSA-h6gw-8f77-mmmp
  • WeKnora VendorTencent Affected before 0.3.0 Fixed in 0.3.0 Patch available CNA
  • github.com/Tencent/WeKnora (Go) Vendor— Affected before 0.3.0 Fixed in 0.3.0 Patch available GHSA-h6gw-8f77-mmmp

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:tencent:weknora:*:*:*:*:*:*:*:*before 0.3.0VulnerableTencent
  • cpe:2.3:a:tencent:weknora:*:*:*:*:*:*:*:* Versions before 0.3.0 Vulnerable ·Tencent

Remediation

  • Fix · CNA WeKnora (Tencent) Fixed in 0.3.0
  • Fix · GHSA-h6gw-8f77-mmmp github.com/Tencent/WeKnora (Go) Fixed in 0.3.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-30858
  2. 2026-10-03 Alias added: GHSA-h6gw-8f77-mmmp

References

Exploit 1

Advisory 1

Other 1

  • TI-2026-23690 WeKnora: Remote Code Execution (RCE) via Command Injection in MCP Stdio Configuration Validation CVSS 3.1CRITICAL 10.0
  • TI-2026-23689 WeKnora: Remote Code Execution via SQL Injection Bypass in AI Database Query Tool CVSS 3.1CRITICAL 10.0
  • TI-2026-18215 WeKnora has Command Injection in MCP stdio test CVSS 3.1CRITICAL 10.0
  • TI-2026-18214 WeKnora vulnerable to SQL Injection CVSS 3.1CRITICAL 9.8
  • TI-2026-23684 WeKnora: Broken Access Control in Tenant Management CVSS 3.1HIGH 8.8
  • TI-2025-10116 Tencent WeKnora test testEmbeddingModel server-side request forgery CVSS 4.0MEDIUM 6.9
See all 11 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences