Eclipse BaSyx Server SDK Vulnerability Bypasses Network Segmentation
The National Vulnerability Database has detailed CVE-2026-7412, a high-severity vulnerability in Eclipse BaSyx Java Server SDK versions prior to 2.0.0-milestone-10. This flaw, rated 8.6 CVSS, stems from inadequate validation within the Operation Delegation feature, allowing unauthenticated remote attackers to force the BaSyx server into executing blind HTTP POST requests.
This isn’t just a simple request forgery. The critical impact here is the ability to bypass network segmentation. An attacker can leverage this to pivot into isolated internal IT/OT infrastructure or target cloud metadata services (IMDS). This vector is a CISO’s nightmare, turning an exposed BaSyx instance into a beachhead for lateral movement deep within critical networks.
The attacker’s calculus is clear: find an exposed BaSyx server, exploit this flaw, and gain an internal foothold without needing further authentication. Defenders must recognize this as a critical path to compromise, providing direct access to systems that are typically isolated and assumed to be secure from external reach.
What This Means For You
- If your organization uses Eclipse BaSyx Java Server SDK, prioritize patching to version 2.0.0-milestone-10 or later immediately. This vulnerability allows unauthenticated attackers to bypass network segmentation and pivot into your internal IT/OT infrastructure or cloud environments. Audit your BaSyx deployments for external exposure and ensure all delegated requests are strictly validated.
Related ATT&CK Techniques
🛡️ Detection Rules
6 rules · 6 SIEM formats6 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-2026-7412
title: Web Application Exploitation Attempt — CVE-2026-7412
id: scw-2026-05-05-1
status: experimental
level: high
description: |
Detects common exploitation patterns targeting web applications. Review CVE-2026-7412 advisories for specific indicators.
author: SCW Feed Engine (auto-generated)
date: 2026-05-05
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-7412/
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-2026-7412
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-7412 | SSRF | Eclipse BaSyx Java Server SDK versions prior to 2.0.0-milestone-10 |
| CVE-2026-7412 | Auth Bypass | Unauthenticated remote attacker |
| CVE-2026-7412 | Network Segmentation Bypass | Operation Delegation feature fails to validate destination URI |
| CVE-2026-7412 | Information Disclosure | Target Cloud Metadata services (IMDS) |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 05, 2026 at 19:16 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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