CVE-2026-22687Public exploitNetwork attack vector

Unauthenticated sensitive-data access via SQL validation bypass

Published Jan 10, 2026 · Updated Jan 10, 2026

SQL injection in Tencent WeKnora before 0.2.5 allows remote attackers to read server files and cross-tenant database data. The Agent database_query tool's validateAndSecureSQL function uses regexes that neither reject dangerous PostgreSQL built-ins nor recognize comments substituted for spaces, then Execute passes the result to Raw for execution. The Agent service and database_query tool must be enabled, and a crafted prompt can reach the agent-chat endpoint without user interaction.

CVSS severity5.6
Medium
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in Tencent WeKnora before 0.2.5 allows remote attackers to read server files and cross-tenant database data. The Agent database_query tool's validateAndSecureSQL function uses regexes that neither reject dangerous PostgreSQL built-ins nor recognize comments substituted for spaces, then Execute passes the result to Raw for execution. The Agent service and database_query tool must be enabled, and a crafted prompt can reach the agent-chat endpoint without user interaction.

The record

CVE
CVE-2026-22687
Published
Jan 10, 2026
Updated
Jan 10, 2026
Vendor
Tencent
Product
WeKnora
Classifications
CWE-89, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.2.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Tencent · WeKnoraversion=< 0.2.5

Published CVSS scores

5.6GitHub, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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