SQL Injection Risk in Tencent WeKnora Affected by Vulnerability
CVE-2026-108821

5.3MEDIUM

Key Information:

Vendor

Tencent

Status
Weknora
Vendor
CVE Published:
12 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-108821?

A security vulnerability exists in the Tencent WeKnora product, specifically within the SQL Validator component. This issue arises from inadequate input validation in the 'validateSubquery' function located in 'internal/utils/inject.go', which allows an attacker to execute SQL injection attacks remotely. The vulnerability could potentially compromise the integrity of the database by manipulating SQL commands. It is crucial for users operating versions up to 0.8.1 to upgrade to version 0.8.2, as this release addresses the identified issues and mitigates associated risks. Failure to update may leave systems exposed to exploitation, posing significant security challenges.

Affected Version(s)

WeKnora 0.8.0

WeKnora 0.8.1

WeKnora 0.8.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-108821 - Proof of Concept

References

https://vuldb.com/vuln/416598
vdb-entrytechnical-description
https://vuldb.com/vuln/416598/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-108821
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

k4z0 (VulDB User)
k4z0 (VulDB User)
.