OpenC3 cosmos up to 6.10.1 JSON-RPC API eval eval injection

Summaryinfo

A vulnerability categorized as critical has been discovered in OpenC3 cosmos up to 6.10.1. The affected element is the function eval of the component JSON-RPC API. Executing a manipulation can lead to eval injection. This vulnerability is tracked as CVE-2025-68271. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in OpenC3 cosmos up to 6.10.1 and classified as critical. This vulnerability affects the function eval of the component JSON-RPC API. The manipulation with an unknown input leads to a eval injection vulnerability. The CWE definition for the vulnerability is CWE-95. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes code syntax before using the input in a dynamic evaluation call (e.g. "eval"). As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. From 5.0.0 to 6.10.1, OpenC3 COSMOS contains a critical remote code execution vulnerability reachable through the JSON-RPC API. When a JSON-RPC request uses the string form of certain APIs, attacker-controlled parameter text is parsed into values using String#convert_to_value. For array-like inputs, convert_to_value executes eval(). Because the cmd code path parses the command string before calling authorize(), an unauthenticated attacker can trigger Ruby code execution even though the request ultimately fails authorization (401). This vulnerability is fixed in 6.10.2.

The advisory is shared for download at github.com. This vulnerability was named CVE-2025-68271 since 12/16/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

Upgrading to version 6.10.2 eliminates this vulnerability.

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Productinfo

Vendor

• OpenC3

Name

• cosmos

Version

• 6.10.0
• 6.10.1

Website

• Product: https://github.com/OpenC3/cosmos/

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