CVE-2026-42088: CWE-250: Execution with Unnecessary Privileges in OpenC3 cosmos
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.
AI Analysis
Technical Summary
OpenC3 COSMOS versions before 7.0.0-rc3 contain an execution with unnecessary privileges vulnerability (CWE-250) in the Script Runner widget. Users able to run scripts can exploit the shared Docker network to bypass API permission checks, gaining unauthorized administrative capabilities including reading/modifying Redis database data and accessing the buckets service holding critical configuration and log files. This privilege escalation allows unauthorized access to secrets and system settings. The issue is resolved in version 7.0.0-rc3.
Potential Impact
An attacker with script execution permissions can escalate privileges to perform administrative actions, including reading secrets and modifying COSMOS settings, which compromises confidentiality and integrity. This can lead to unauthorized access to sensitive data and configuration tampering. The vulnerability does not impact availability. The CVSS 3.1 score is 9.6 (critical), reflecting high impact on confidentiality and integrity with network attack vector and low attack complexity.
Mitigation Recommendations
A fix is available in OpenC3 COSMOS version 7.0.0-rc3. Users should upgrade to this version or later to remediate the vulnerability. No other vendor advisories or temporary mitigations are provided. Patch status is confirmed by the vendor's versioning information.
CVE-2026-42088: CWE-250: Execution with Unnecessary Privileges in OpenC3 cosmos
Description
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
OpenC3 COSMOS versions before 7.0.0-rc3 contain an execution with unnecessary privileges vulnerability (CWE-250) in the Script Runner widget. Users able to run scripts can exploit the shared Docker network to bypass API permission checks, gaining unauthorized administrative capabilities including reading/modifying Redis database data and accessing the buckets service holding critical configuration and log files. This privilege escalation allows unauthorized access to secrets and system settings. The issue is resolved in version 7.0.0-rc3.
Potential Impact
An attacker with script execution permissions can escalate privileges to perform administrative actions, including reading secrets and modifying COSMOS settings, which compromises confidentiality and integrity. This can lead to unauthorized access to sensitive data and configuration tampering. The vulnerability does not impact availability. The CVSS 3.1 score is 9.6 (critical), reflecting high impact on confidentiality and integrity with network attack vector and low attack complexity.
Mitigation Recommendations
A fix is available in OpenC3 COSMOS version 7.0.0-rc3. Users should upgrade to this version or later to remediate the vulnerability. No other vendor advisories or temporary mitigations are provided. Patch status is confirmed by the vendor's versioning information.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-23T19:17:30.566Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69f8dc9fcbff5d86103c010f
Added to database: 5/4/2026, 5:51:27 PM
Last enriched: 5/4/2026, 6:06:20 PM
Last updated: 5/5/2026, 5:08:56 AM
Views: 7
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