Executive brief
Eclipse BaSyx is a software toolkit used to build 'Digital Twins' for industrial manufacturing and IoT systems. A security flaw in its operation delegation feature allows an attacker to trick the server into sending unauthorized web requests to internal systems. This could allow an attacker to bypass network security boundaries and access sensitive internal data, industrial control systems, or cloud management services that are not supposed to be reachable from the internet.
Technical details
A Server-Side Request Forgery (SSRF) vulnerability exists in the Eclipse BaSyx Java Server SDK due to a lack of URI validation in the Operation Delegation feature. The HTTPOperationDelegation component uses a Spring WebClient to forward requests to URIs defined in a Submodel's invocationDelegation extension without verifying the destination. An unauthenticated remote attacker can provide a malicious URI pointing to internal loopback addresses, private RFC-1918 subnets, or Cloud Metadata Services (IMDS). This allows the attacker to execute blind HTTP POST requests, effectively using the BaSyx server as a proxy to bypass network segmentation and reach isolated IT/OT infrastructure. The issue is resolved in version 2.0.0-milestone-10.
Affected products
- Eclipse Foundation BaSyx Java Server SDK versions prior to 2.0.0-milestone-10
Timeline
- 2026-05-05: disclosed
- 2026-05-05: advisory