Eclipse BaSyx Go Components up to 1.1.3 Router access control

Summaryinfo

A vulnerability described as problematic has been identified in Eclipse BaSyx Go Components up to 1.1.3. This vulnerability affects unknown code of the component Router. Executing a manipulation can lead to access control. This vulnerability is handled as CVE-2026-128986. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic was found in Eclipse BaSyx Go Components up to 1.1.3. This vulnerability affects an unknown code block of the component Router. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality. CVE summarizes:

In Eclipse BaSyx Go Components versions up to and including 1.1.3, ABAC-enabled deployments match `ROUTE` access rules against the fully decoded request path, while the router routes on the raw, still encoded path. An encoded slash (`%2F`) inside a path value is a segment separator for the access check but part of the value for the router, so a request can match a narrow `ROUTE` rule while the handler returns a different, larger resource. An authenticated caller whose rules grant READ only on parts of a resource can therefore read the whole resource. In the DPP API, a rule such as `/v1/dpps/*/elements/*`, meant to grant only passport elements, also grants the complete passport whose identifier contains `/elements/`. In the Submodel Repository, AAS Repository and AAS Environment, a rule such as `/submodels/*/submodel-elements/*/attachment`, meant to grant only file attachments, also grants the complete element whose stored idShort contains `%2F`. The issue is fixed in Eclipse BaSyx Go Components v1.1.4.

The advisory is shared for download at gitlab.eclipse.org. This vulnerability was named CVE-2026-128986 since 11/13/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading to version 1.1.4 eliminates this vulnerability.

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Productinfo

Vendor

• Eclipse

Name

• BaSyx Go Components

Version

• 1.1.0
• 1.1.1
• 1.1.2
• 1.1.3

License

• open-source

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