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.
Metrics
Affected Vendors & Products
References
History
Fri, 08 May 2026 20:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:openc3:cosmos:*:*:*:*:open_source:*:*:* cpe:2.3:a:openc3:cosmos:7.0.0:rc1:*:*:open_source:*:*:* cpe:2.3:a:openc3:cosmos:7.0.0:rc2:*:*:open_source:*:*:* |
Wed, 06 May 2026 14:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Mon, 04 May 2026 20:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Openc3
Openc3 cosmos |
|
| Vendors & Products |
Openc3
Openc3 cosmos |
Mon, 04 May 2026 17:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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, 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. | |
| Title | OpenC3 COSMOS: Hijacked session token can be used to reset password for persistence | |
| Weaknesses | CWE-620 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-05-04T17:11:31.853Z
Updated: 2026-05-06T13:39:58.104Z
Reserved: 2026-04-23T19:17:30.566Z
Link: CVE-2026-42084
Updated: 2026-05-06T13:39:49.539Z
Status : Analyzed
Published: 2026-05-04T18:16:30.357
Modified: 2026-05-08T19:54:14.983
Link: CVE-2026-42084
No data.