Description
OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. A path traversal vulnerability inside of LocalMode's open_local_file method allows an authenticated user with adequate permissions to download any .txt via the ScreensController#show on the web server COSMOS is running on (depending on the file permissions). This vulnerability is fixed in 5.19.0.
Details
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| cosmos | — | 5.19.0 |
| openc3 | — | 5.19.0 |
References
Similar Threats
- Critical CVE-2026-42088
- Critical CVE-2026-42087
- High CVE-2026-42084
- Medium CVE-2026-42085
- Medium CVE-2026-42086
Exploit Protection
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