GHSA-wgx6-g857-jjf7
High · 8.1OpenC3 COSMOS: Hijacked session token can be used to reset password for persistence
CVSS
8.1
EPSS
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Published
Apr 22, 2026
CISA due date
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The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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