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 save_tool_config() function that allows saving tool configuration files at arbitrary locations inside the shared /plugins directory tree by supplying crafted configuration filenames. Although the implementation sufficiently mitigates standard path traversal attacks, by canonicalizing filename to an absolute path, all plugins share this same root directory. That enables users to create arbitrary file structures and overwrite existing configuration files within the shared /plugins directory. This issue has been patched in versions 6.10.5 and 7.0.0-rc3.
Metrics
Affected Vendors & Products
References
History
Mon, 04 May 2026 19:15:00 +0000
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ssvc
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Mon, 04 May 2026 19:00:00 +0000
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Openc3
Openc3 cosmos |
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Openc3
Openc3 cosmos |
Mon, 04 May 2026 17:45:00 +0000
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| Description | 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 save_tool_config() function that allows saving tool configuration files at arbitrary locations inside the shared /plugins directory tree by supplying crafted configuration filenames. Although the implementation sufficiently mitigates standard path traversal attacks, by canonicalizing filename to an absolute path, all plugins share this same root directory. That enables users to create arbitrary file structures and overwrite existing configuration files within the shared /plugins directory. This issue has been patched in versions 6.10.5 and 7.0.0-rc3. | |
| Title | OpenC3 COSMOS: Arbitrary write to plugins directory via path-traversed config filenames | |
| Weaknesses | CWE-23 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-05-04T18:47:32.584Z
Reserved: 2026-04-23T19:17:30.566Z
Link: CVE-2026-42085
Updated: 2026-05-04T18:43:06.693Z
Status : Received
Published: 2026-05-04T18:16:30.510
Modified: 2026-05-04T19:16:04.110
Link: CVE-2026-42085
No data.
OpenCVE Enrichment
Updated: 2026-05-04T19:00:07Z