{"cve":"CVE-2026-42088","nvd":{"published":"2026-05-04T18:16:31.007","modified":"2026-10-26T19:10:00.163","status":"Analyzed","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","score":8.1},"cwes":["CWE-250"],"references":["https://github.com/OpenC3/cosmos/releases/tag/v7.0.0","https://github.com/OpenC3/cosmos/releases/tag/v7.0.0-rc3","https://github.com/OpenC3/cosmos/security/advisories/GHSA-2wvh-87g2-89hr","https://github.com/OpenC3/cosmos/security/advisories/GHSA-2wvh-87g2-89hr"],"products":["openc3:cosmos"],"source":"nvd","synced_at":"2026-10-26T19:31:02.781428341+00:00"},"epss":{"cve":"CVE-2026-42088","score":0.00341,"percentile":0.27398,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-2wvh-87g2-89hr","url":"https://osv.dev/vulnerability/GHSA-2wvh-87g2-89hr","summary":"OpenC3 COSMOS: Permissions Bypass Provides User Access to Unassigned Administrative Actions via Script Runner Tool","modified":"2026-09-10T03:50:42.336804564Z","packages":[{"ecosystem":"RubyGems","name":"openc3","purl":"pkg:gem/openc3","ranges":["<7.0.0-rc3"],"fixed":["7.0.0-rc3"]}]},{"id":"PYSEC-2026-2245","url":"https://osv.dev/vulnerability/PYSEC-2026-2245","summary":"","modified":"2026-07-13T07:15:38.978765344Z","packages":[{"ecosystem":"PyPI","name":"openc3","purl":"pkg:pypi/openc3","ranges":["<7.0.0"],"fixed":["7.0.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}