Netatalk Arbitrary File Read (CVE-2026-44051) Poses High Risk
The National Vulnerability Database has issued an advisory for CVE-2026-44051, a high-severity arbitrary file read vulnerability affecting Netatalk versions 3.0.2 through 4.4.2. This flaw, rated with a CVSS score of 8.1, allows an attacker to create attacker-controlled symlinks, which can then be leveraged to read arbitrary files on the system. It’s a classic CWE-59 issue – path traversal via symlink manipulation.
This isn’t just a theoretical vulnerability; arbitrary file read can be a critical precursor to further compromise. An attacker gaining the ability to read sensitive configuration files, shadow files, or private keys can significantly escalate their privileges or exfiltrate critical data. The ‘arbitrary’ nature means they’re not limited to specific file types or locations, making the potential impact severe.
Defenders need to treat this with urgency. The fix is available in Netatalk version 4.4.3. Any organization running vulnerable versions of Netatalk should prioritize patching immediately. Given the network vector (AV:N) and low privileges required (PR:L), this is an easy win for attackers looking to gain initial access or move laterally within a compromised network.
What This Means For You
- If your organization uses Netatalk, check your version immediately. Any instance running 3.0.2 through 4.4.2 is vulnerable to CVE-2026-44051, allowing arbitrary file reads. Prioritize patching to version 4.4.3 or higher to close this dangerous path traversal.
Related ATT&CK Techniques
🛡️ Detection Rules
3 rules · 6 SIEM formats3 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-2026-44051 - Netatalk Arbitrary File Read via Symlink
title: CVE-2026-44051 - Netatalk Arbitrary File Read via Symlink
id: scw-2026-05-21-ai-1
status: experimental
level: high
description: |
Detects the creation of specific symlink patterns within Netatalk's .AppleDouble directory, indicative of an attempt to exploit CVE-2026-44051 for arbitrary file read access. This rule specifically targets the mechanism used to create attacker-controlled symlinks that point to sensitive files.
author: SCW Feed Engine (AI-generated)
date: 2026-05-21
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-44051/
tags:
- attack.discovery
- attack.t1083
logsource:
category: file_event
detection:
selection:
TargetFilename|contains:
- '/.AppleDouble/'
TargetFilename|endswith:
- '/..namedfork/rsrc'
EventType: 'create'
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-44051 | Path Traversal | Netatalk versions 3.0.2 through 4.4.2 |
| CVE-2026-44051 | Information Disclosure | Netatalk arbitrary file read via attacker-controlled symlink creation |
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.
Believe this infringes your rights? Submit a takedown request.
Related coverage
CVE-2026-42396 — Insufficient Validation of Member Zone Data May Cause
CVE-2026-42396 — Insufficient Validation of Member Zone Data May Cause Catalog Zone Transfer to Fail
CVE-2026-42002 — Concurrency and locking defects in
CVE-2026-42002 — Concurrency and locking defects in GSS-TSIG
CVE-2026-42001: Autoprimary SOA Queries Vulnerability
CVE-2026-42001 — Insufficient Validation of Autoprimary SOA Queries