OpenC3 cosmos up to 7.0.0-rc2 cvt_model.rb tsdb_lookup sql injection

Summaryinfo

A vulnerability classified as critical has been found in OpenC3 cosmos up to 7.0.0-rc2. This vulnerability affects the function tsdb_lookup of the file cvt_model.rb. This manipulation causes sql injection. This vulnerability is registered as CVE-2026-42087. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in OpenC3 cosmos up to 7.0.0-rc2. Affected by this vulnerability is the function tsdb_lookup of the file cvt_model.rb. The manipulation with an unknown input leads to a sql injection vulnerability. The CWE definition for the vulnerability is CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. From version 6.7.0 to before version 7.0.0-rc3, a SQL injection vulnerability exists in the Time-Series Database (TSDB) component of COSMOS. The tsdb_lookup function in the cvt_model.rb file directly places user-supplied input into a SQL query without sanitizing the input. As a result, a user can break out of the initial SQL statement and execute arbitrary SQL commands, including deleting data. This issue has been patched in version 7.0.0-rc3.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-42087 since 04/23/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1505 for this issue.

Upgrading to version 7.0.0-rc3 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 9ba60c09c8836a37a2e4ea67ab35fe403e041415 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

• OpenC3

Name

• cosmos

Version

• 7.0.0-rc1
• 7.0.0-rc2

License

• open-source

Website

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

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