{"action":"Upgrade openc3 to 7.3.0 or later.","affected":[{"fixed":"7.3.0","introduced":"5.1.0"}],"component":"openc3","cve_ids":["CVE-2026-77602"],"ecosystem":"RubyGems","epss":0.00716,"exploited":false,"fixed_versions":["7.3.0"],"ghsa_id":"GHSA-jjq7-m736-w977","id":"tcs_01M5KEKY67V2MXGBW767HJRCGD","modified_at":"2026-09-23T19:01:49.808466306Z","published_at":"2026-09-23T18:57:24Z","references":["https://osv.dev/vulnerability/GHSA-jjq7-m736-w977","https://github.com/OpenC3/cosmos/security/advisories/GHSA-jjq7-m736-w977","https://github.com/OpenC3/cosmos/pull/3488","https://github.com/OpenC3/cosmos/commit/71943352a28128ef3e7e894319d97a656b5cd4f2","https://github.com/OpenC3/cosmos/commit/7a1538a4626f82c0d1540fcaa27ffdcbbd71ff81","https://github.com/OpenC3/cosmos"],"severity":{"label":"critical","score":9.9},"sources":[{"source":"osv","source_id":"GHSA-jjq7-m736-w977","url":"https://osv.dev/vulnerability/GHSA-jjq7-m736-w977"}],"summary":"OpenC3 COSMOS: Authenticated remote code execution via the user-writable config overlay (table definitions, cmd/tlm definitions, and script suites)"}