Netatalk SQL Injection (CVE-2026-44047) Poses High Risk
The National Vulnerability Database has disclosed CVE-2026-44047, a high-severity SQL injection vulnerability affecting Netatalk versions 3.1.0 through 4.4.2. This flaw, with a CVSS score of 8.8, is categorized under CWE-89, indicating a critical weakness where attackers can manipulate database queries.
This vulnerability allows an authenticated attacker to execute arbitrary SQL commands within the mysql cnid backend. Successful exploitation could lead to full compromise of the database, enabling data exfiltration, modification, or even complete system control, depending on the privileges of the database user. The impact is severe, encompassing high confidentiality, integrity, and availability risks.
Defenders running Netatalk in their environments must prioritize patching. The National Vulnerability Database confirms that this issue has been fixed in Netatalk version 4.4.3. Ignoring this update leaves a wide-open door for attackers to gain deep access into systems leveraging this file-sharing solution.
What This Means For You
- If your organization uses Netatalk, specifically versions 3.1.0 through 4.4.2, you are exposed to a critical SQL injection vulnerability. Immediately identify all Netatalk instances and apply the patch to version 4.4.3 or later. Prioritize systems using the `mysql cnid backend`, as these are directly exploitable.
Related ATT&CK Techniques
🛡️ Detection Rules
2 rules · 6 SIEM formats2 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.
CVE-2026-44047 Netatalk SQL Injection via mysql cnid backend
title: CVE-2026-44047 Netatalk SQL Injection via mysql cnid backend
id: scw-2026-05-21-ai-1
status: experimental
level: critical
description: |
Detects attempts to exploit the SQL injection vulnerability in Netatalk's mysql cnid backend (CVE-2026-44047). The rule looks for specific SQL injection patterns within the URI query parameters, particularly targeting the 'cnid' parameter which is known to be vulnerable in affected versions.
author: SCW Feed Engine (AI-generated)
date: 2026-05-21
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-44047/
tags:
- attack.initial_access
- attack.t1190
logsource:
category: webserver
detection:
selection:
cs-uri|contains:
- '/?cnid='
cs-uri-query|contains:
- "' OR '1'='1"
- "' OR 1=1 --"
- "' OR 1=1 #"
- "' UNION SELECT"
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-44047 | SQLi | Netatalk versions 3.1.0 through 4.4.2 |
| CVE-2026-44047 | SQLi | mysql cnid backend |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 21, 2026 at 11:16 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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