cvedb.io
CVE-2026-42084
HIGH · CVSS 8.1
EPSS exploitation probability: 0%
Published 2026-05-04T18:16:30.357 · Last modified 2026-06-17T10:47:24.560

Summary

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, the OpenC3 password change functionality allows a user to change their password without providing the old password, by accepting a valid session token instead. In assumed breach scenarios, this behaviour can be exploited by an attacker who has already obtained a valid session token, to gain persistence in hijacked account (including admin) and prevent legitimate users from accessing the account. This issue has been patched in versions 6.10.5 and 7.0.0-rc3.

Affected products

openc3 — cosmos

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.