CVE-2026-77601 OpenC3 COSMOS: Authenticated OS command injection via the `pypi_url` setting

OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. From 5.12.0 until 7.3.0, an authenticated actor can write the pypiurl setting through setsetting at POST /openc3-api/api, then cause OpenC3::PluginModel.installphase2 in...

CVE-2026-77601

OpenC3 COSMOS versions 5.12.0 through 7.3.0 are vulnerable to authenticated OS command injection via the pypi_url setting. An attacker can use the set_setting API method (POST /openc3-api/api) to write a malicious URL containing shell metacharacters. When a plugin with Python dependencies is inst...

CVE-2026-77601 OpenC3 COSMOS: Authenticated OS command injection via the `pypi_url` setting

OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. From 5.12.0 until 7.3.0, an authenticated actor can write the pypiurl setting through setsetting at POST /openc3-api/api, then cause OpenC3::PluginModel.installphase2 in...

EUVD-2026-85563

OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. From 5.12.0 until 7.3.0, an authenticated actor can write the pypiurl setting through setsetting at POST /openc3-api/api, then cause OpenC3::PluginModel.installphase2 in...

CVE-2026-77601 OpenC3 COSMOS: Authenticated OS command injection via the `pypi_url` setting

OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. From 5.12.0 until 7.3.0, an authenticated actor can write the pypiurl setting through setsetting at POST /openc3-api/api, then cause OpenC3::PluginModel.installphase2 in...

PT-2026-97524

Name of the Vulnerable Software and Affected Versions OpenC3 COSMOS versions 5.1.0 through 7.3.0 Description Authenticated non-administrator users can achieve arbitrary code execution on a COSMOS server by writing malicious content into the targets modified/ overlay directory. This is possible...

CVE-2026-77394: Improper Neutralization of Input During Web Page Generation

OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. From 5.0.6 until 7.3.0, an authenticated actor with systemset permission can store a shared screen through POST /openc3-api/screen whose BUTTON widget action is evaluated by...

CVE-2026-77601: Improper Neutralization of Special Elements used in an OS Command

OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. From 5.12.0 until 7.3.0, an authenticated actor can write the pypiurl setting through setsetting at POST /openc3-api/api, then cause OpenC3::PluginModel.installphase2 in...

PT-2026-97523

Name of the Vulnerable Software and Affected Versions OpenC3 COSMOS versions 5.12.0 through 7.2.9 Description An authenticated actor can execute arbitrary operating system commands as the openc3 service user. The issue occurs when the set setting method at the POST /openc3-api/api endpoint is use...

PT-2026-97522

Name of the Vulnerable Software and Affected Versions OpenC3 COSMOS versions 5.0.6 through 7.2.0 Description An authenticated actor with system set permission can perform a stored cross-user cross-site scripting XSS attack. By sending a request to the 'POST /openc3-api/screen' endpoint, an attack...

CVE-2026-77602: Improper Control of Generation of Code

OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. From 5.1.0 until 7.3.0, authenticated non-administrator users can write content under targetsmodified/ that is later executed by multiple configuration paths below the intended...

OpenC3 COSMOS - Authenticated remote code execution via the user-writable config overlay (table definitions, cmd/tlm definitions, and script suites)

Summary COSMOS reads configuration from a user-writable overlay targetsmodified/ before the read-only plugin-installed targets/ tree, and the config subsystem executes code on those files: ConfigParser renders every file as ERB by default, a GENERICREADCONVERSION / GENERICWRITECONVERSION block is...

OpenC3 COSMOS - Authenticated OS command injection via the `pypi_url` setting

Summary An authenticated user can execute arbitrary operating system commands on the openc3-cosmos-cmd-tlm-api service. The pypiurl setting is interpolated, unescaped, into a command line that is run through a shell backtick when a plugin is installed. Shell metacharacters in the setting value ar...

CVE-2026-42085

OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. Prior to versions 6.10.5 and 7.0.0-rc3, OpenC3 COSMOS contains a design flaw in the savetoolconfig function that allows saving tool configuration files at arbitrary locations...

CVE-2026-42086

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, the Command Sender UI uses an unsafe eval function on array-like command parameters, which allows a user-supplied payload to execute in the browser when...

CVE-2026-42087

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 tsdblookup function in the...

CVE-2026-42088

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...

PYSEC-2026-2245

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...

PYSEC-2026-2245

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...

CVE-2026-42087

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 tsdblookup function in the...