Unauthenticated Remote Code Execution in openc3-api_CVE-2025-68271

10 / 10

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Description

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.

AI Analysis

Unauthenticated remote code execution vulnerability in OpenC3 COSMOS via JSON-RPC API

Basic Information

ID CVE-2025-68271

Source GitHub_M

Published Jan 13, 2026 at 18:32

Modified Jan 13, 2026 at 18:33

Affected Product

Vendor OpenC3

Product cosmos

Version >= 5.0.0, < 6.10.2

Affected Versions OpenC3 cosmos >= 5.0.0, < 6.10.2

CWE Classification

CWE-95

AI Assessment

AI Score 10 / 10

AI Severity Critical

Vendor OpenC3

Product COSMOS

Version 5.0.0-6.10.1

References

github.com /OpenC3/cosmos/security/advisories/GHSA-w757-4qv9-mghp

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