Cockpit CMS before 2.14.1 contains an account enumeration vulnerability in the auth check endpoint due to timing discrepancies in password verification. Attackers can measure response times across multiple requests to determine which accounts exist by observing that existing accounts trigger bcrypt verification while non-existent accounts return immediately.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 5
https://github.com/Cockpit-HQ/Cockpit
disclosure@vulncheck.com
https://github.com/Cockpit-HQ/Cockpit/blob/2.14.0/modules/App/Controller/Auth.p…
disclosure@vulncheck.com
https://github.com/Cockpit-HQ/Cockpit/commit/5d65ae7b63a261a63e8809e5fba857ef3e…
disclosure@vulncheck.com
https://link.mateocallec.com/MFC-2026-001
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/cockpit-cms-before-2.14.1-account-enumerat…
disclosure@vulncheck.com