CVE-2026-29206: SQL Injection in sqloptimizer via Slow Query Logs
The National Vulnerability Database (NVD) has disclosed CVE-2026-29206, a high-severity SQL Injection vulnerability (CVSS 8.1) found in the sqloptimizer utility script. This flaw stems from insufficient sanitization of SQL queries. The critical vector here is its reliance on Slow Query logging being enabled, which, if active, allows for root-level SQL injection.
This isn’t a theoretical issue. Attackers who can manipulate slow query logs can achieve significant compromise. The impact is severe: successful exploitation grants an attacker high integrity and high availability impact, with no confidentiality impact according to the CVSS vector. This means data could be corrupted or systems taken offline, even if direct data exfiltration isn’t the primary outcome.
Defenders must recognize the elevated privilege this vulnerability grants. An attacker leveraging this can execute arbitrary SQL commands as the root user. This bypasses typical permission models and can lead to full system compromise or data manipulation, despite the CVSS assessment of no confidentiality impact. The attacker’s calculus is clear: gain root, own the database.
What This Means For You
- If your organization uses `sqloptimizer` and has Slow Query logging enabled, you are directly exposed. Immediately review your configurations to determine if this script is in use and if logging is active. Prioritize patching or implementing compensating controls to prevent root-level SQL injection.
Related ATT&CK Techniques
🛡️ Detection Rules
7 rules · 6 SIEM formats7 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
Web Application Exploitation Attempt — CVE-2026-29206
title: Web Application Exploitation Attempt — CVE-2026-29206
id: scw-2026-05-13-1
status: experimental
level: high
description: |
Detects common exploitation patterns targeting web applications. Review CVE-2026-29206 advisories for specific indicators.
author: SCW Feed Engine (auto-generated)
date: 2026-05-13
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-29206/
tags:
- attack.initial_access
- attack.t1190
logsource:
category: webserver
detection:
selection:
cs-uri-query|contains:
- '..'
- 'SELECT'
- 'UNION'
- '<script'
- 'cmd='
- '/etc/passwd'
condition: selection
falsepositives:
- Legitimate activity from CVE-2026-29206
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-29206 | SQLi | Insufficient sanitization of SQL queries in `sqloptimizer` utility script |
| CVE-2026-29206 | SQLi | Requires Slow Query logging to be enabled |
| CVE-2026-29206 | SQLi | Impacts root user |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 14, 2026 at 02:16 UTC |
This content was AI-rewritten and enriched by Shimi's Cyber World based on the original source. All intellectual property rights remain with the original author.
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