Eclipse Ankaios up to 1.0.1 Control Interface improper authorization

Summaryinfo

A vulnerability described as critical has been identified in Eclipse Ankaios up to 1.0.1. Affected is an unknown function of the component Control Interface. Such manipulation leads to improper authorization. This vulnerability is referenced as CVE-2026-84173. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Eclipse Ankaios up to 1.0.1. Affected by this issue is an unknown code block of the component Control Interface. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In Eclipse Ankaios versions v0.5.1 through v1.0.1, the agent-side Control Interface authorizer incorrectly evaluates multi-segment allow rules whose first path segment is a wildcard. An authenticated workload with access restricted by such a rule can submit a CompleteStateRequest or UpdateStateRequest with an empty field mask. The request may then be incorrectly authorized as matching the scoped rule, allowing the workload to read the complete cluster state or replace state outside its authorized subtree. This may result in unauthorized disclosure or modification of other workloads and cluster configuration. Only a rule consisting solely of * is intended to authorize an empty mask. Mitigation: Until an update containing the fix is installed, avoid multi-segment Control Interface allow-rule filter masks that begin with a wildcard, such as *.workloads.some_workload. Replace them with explicit paths such as desiredState.workloads.some_workload, where applicable. A filter mask consisting solely of * has different, intentionally unrestricted semantics and should only be used when full-state access is intended.

The advisory is available at gitlab.eclipse.org. This vulnerability is handled as CVE-2026-84173 since 09/01/2026. The exploitation is known to be easy. The attack may be launched remotely. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/07/2026). This vulnerability is assigned to T1548.002 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-72323). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• Eclipse

Name

• Ankaios

Version

• 1.0.0
• 1.0.1

License

• open-source

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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