{"id":"CVE-2026-77601","state":"PUBLISHED","title":"OpenC3 COSMOS: Authenticated OS command injection via the `pypi_url` setting","description":"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 pypi_url setting through set_setting at POST /openc3-api/api, then cause OpenC3::PluginModel.install_phase2 in openc3/lib/openc3/models/plugin_model.rb to interpolate the value into a shell command while installing a plugin with Python dependency metadata. Shell metacharacters in the setting are interpreted by the command shell, allowing arbitrary operating-system commands to run as the openc3 service user with access to Redis and bucket credentials. Open-source deployments permit any authenticated user to reach the affected operations, while Enterprise deployments require an administrator. This issue is fixed in version 7.3.0.","publishedAt":"2026-09-23T18:50:15.333Z","updatedAt":"2026-09-23T19:28:50.877Z","severity":{"score":8.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["OpenC3 cosmos"],"affected":[{"vendor":"OpenC3","product":"cosmos","versions":[{"version":">= 5.12.0, < 7.3.0","status":"affected"}]}],"references":["https://github.com/OpenC3/cosmos/security/advisories/GHSA-vp3w-52v9-q57f","https://github.com/OpenC3/cosmos/pull/3489","https://github.com/OpenC3/cosmos/commit/be70d1d836c83c3b084e768e31a399312d4cbe0b"],"weaknesses":["CWE-78"],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/77xxx/CVE-2026-77601.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-77601","state":"PUBLISHED","datePublished":"2026-09-23T18:50:15.333Z","dateUpdated":"2026-09-23T19:28:50.877Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-08-20T20:48:20.507Z"},"containers":{"cna":{"title":"OpenC3 COSMOS: Authenticated OS command injection via the `pypi_url` setting","descriptions":[{"lang":"en","value":"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 pypi_url setting through set_setting at POST /openc3-api/api, then cause OpenC3::PluginModel.install_phase2 in openc3/lib/openc3/models/plugin_model.rb to interpolate the value into a shell command while installing a plugin with Python dependency metadata. Shell metacharacters in the setting are interpreted by the command shell, allowing arbitrary operating-system commands to run as the openc3 service user with access to Redis and bucket credentials. Open-source deployments permit any authenticated user to reach the affected operations, while Enterprise deployments require an administrator. This issue is fixed in version 7.3.0."}],"affected":[{"vendor":"OpenC3","product":"cosmos","versions":[{"version":">= 5.12.0, < 7.3.0","status":"affected"}]}],"references":[{"url":"https://github.com/OpenC3/cosmos/security/advisories/GHSA-vp3w-52v9-q57f","name":"https://github.com/OpenC3/cosmos/security/advisories/GHSA-vp3w-52v9-q57f","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/OpenC3/cosmos/pull/3489","name":"https://github.com/OpenC3/cosmos/pull/3489","tags":["x_refsource_MISC"]},{"url":"https://github.com/OpenC3/cosmos/commit/be70d1d836c83c3b084e768e31a399312d4cbe0b","name":"https://github.com/OpenC3/cosmos/commit/be70d1d836c83c3b084e768e31a399312d4cbe0b","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-78","lang":"en","description":"CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-09-23T18:50:15.333Z"},"source":{"advisory":"GHSA-vp3w-52v9-q57f","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/OpenC3/cosmos/security/advisories/GHSA-vp3w-52v9-q57f","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-23T19:28:30.534617Z","id":"CVE-2026-77601","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-23T19:28:50.877Z"}}]}}}