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TI-2026-81664 Aliases CVE-2026-118376GHSA-29gq-28qv-vr5m

SSRF guard bypass in Tencent WeKnora via NAT64 IPv6 addresses

Priority LOW 27CWE-918Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-918 and the CVSS impact.

Summary

WeKnora from 0.2.11 before 0.8.2 contains a server-side request forgery flaw in isRestrictedIP() (CWE-918) that misclassifies NAT64-prefixed IPv6 addresses as public. An authenticated attacker can supply URLs that resolve to NAT64 encodings of internal addresses through web_fetch or URL-based knowledge import, reaching internal services or cloud metadata endpoints.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

WeKnora before 0.8.2 contains a server-side request forgery vulnerability in isRestrictedIP() that misclassifies NAT64-prefixed IPv6 addresses as public. Authenticated attackers can supply URLs resolving to NAT64 encodings of internal addresses via web_fetch or URL-based knowledge import to reach internal services or cloud metadata endpoints.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00273 19th percentileScored 2026-11-07
Fix Fixed WeKnora (Tencent): 0.8.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
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
TencentWeKnora0.2.11 to before 0.8.20.8.2Patch availableCNA
  • WeKnora VendorTencent Affected 0.2.11 to before 0.8.2 Fixed in 0.8.2 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:tencent:weknora:*:*:*:*:*:*:*:*——Tencent
  • cpe:2.3:a:tencent:weknora:*:*:*:*:*:*:*:* Versions — — ·Tencent

Remediation

Upgrade Tencent WeKnora to version 0.8.2.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA WeKnora (Tencent) Fixed in 0.8.2

Timeline

  1. 2026-10-28 Threatist record created from CVE-2026-118376
  2. 2026-10-28 Alias added: GHSA-29gq-28qv-vr5m
  3. 2026-10-28 CISA SSVC decision points changed
  4. 2026-10-28 Priority changed: MEDIUM → LOW

References

Patch 2

Other 4

  • TI-2023-14243 vConsole v3.15.0 was discovered to contain a prototype pollution due to incorrect key and… CVSS 3.1CRITICAL 9.8
  • 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
See all 69 →

Sources

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