EUVD-2026-27065CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Lifecycle Timeline
5DescriptionNVD
OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. Prior to version 7.0.0-rc3, the Script Runner widget allows users to execute Python and Ruby scripts directly from the openc3-COSMOS-script-runner-api container. Because all the docker containers share a network, users can execute specially crafted scripts to bypass the API permissions check and perform administrative actions, including reading and modifying data inside the Redis database, which can be used to read secrets and change COSMOS settings, as well as read and write to the buckets service, which holds configuration, log, and plugin files. These actions are normally only available from the Admin Console or with administrative privileges. Any user with permission to create and run scripts can connect to any service in the docker network. This issue has been patched in version 7.0.0-rc3.
AnalysisAI
Privilege escalation in OpenC3 COSMOS allows low-privileged authenticated users to bypass API authorization and perform administrative actions by executing crafted Python or Ruby scripts via the Script Runner widget. Attackers can directly access Redis database (exposing secrets and configuration settings) and the MinIO buckets service (containing logs, configs, and plugins) due to unrestricted container-to-container network access in the Docker deployment. …
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RemediationAI
Within 24 hours: Identify all OpenC3 COSMOS deployments and document current versions. Within 7 days: Upgrade all instances to version 7.0.0 or later; verify upgrade completion and test Script Runner functionality. …
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