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SQL injection in Tencent WeKnora SQL Validator

Priority MEDIUM 57CWE-74Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
SQL injection
Confidentiality · integrity · availability
Low · Low · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-89.

Summary

Tencent WeKnora up to 0.8.1 contains an SQL injection flaw (CWE-89) in the validateSubquery function of internal/utils/inject.go in its SQL Validator component. Improper neutralization of special elements lets a remote attacker with low privileges manipulate SQL queries. The exploit has been publicly disclosed, and a public exploit is linked in the references.

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

Description from the CNA

A security vulnerability has been detected in Tencent WeKnora up to 0.8.1. Impacted is the function validateSubquery of the file internal/utils/inject.go of the component SQL Validator. The manipulation leads to sql injection. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 0.8.2 is recommended to address this issue. The identifier of the patch is d7ccd5ba517cc3968e6d5000a2ab0f4b51ef1dda. It is recommended to upgrade the affected component.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0024 15th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed WeKnora (Tencent): 0.8.2

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
TencentWeKnora0.8.0; 0.8.10.8.2Patch availableCNA
  • WeKnora VendorTencent Affected 0.8.0; 0.8.1 Fixed in 0.8.2 Patch available CNA

CPE names CNA · 1

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, which contains patch d7ccd5ba517cc3968e6d5000a2ab0f4b51ef1dda.

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

  • Fix · CNA WeKnora (Tencent) Fixed in 0.8.2

Timeline

  1. 2026-10-12 Threatist record created from CVE-2026-108821
  2. 2026-10-12 Alias added: GHSA-36w2-ffqw-gx86
  3. 2026-10-13 CISA SSVC decision points changed
  4. 2026-10-13 Priority changed: LOW → MEDIUM

References

  • 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