CVE-2026-42088High· 8.1▾ TwilightOpenC3 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 th…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 44.6 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 13.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
Last analysed / modified upstream
0.3%
0.3% → 0.5%
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.
openc3 < 7.0.0Upgrade to a patched release:
openc3 7.0.0Connected by shared product, vendor, weakness, or advisory.
CVE-2026-42087Critical· 9.6OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. From version 6.7.…
CVE-2026-42085Medium· 4.3OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. Prior to versions…
CVE-2026-42084High· 8.1OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. Prior to versions…
CVE-2025-28388Critical· 9.8OpenC3 COSMOS before v6.0.2 was discovered to contain hardcoded credentials for the Service Account.
CVE-2025-28384Critical· 9.1An issue in the /script-api/scripts/ endpoint of OpenC3 COSMOS before 6.1.0 allows attackers to execute a directory traversal.
CVE-2025-28382High· 7.5An issue in the openc3-api/tables endpoint of OpenC3 COSMOS before 6.1.0 allows attackers to execute a directory traversal.