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.
https://www.vulncheck.com/advisories/cockpit-cms-before-2.14.1-account-enumeration-via-auth-timing
https://link.mateocallec.com/MFC-2026-001
https://github.com/Cockpit-HQ/Cockpit/commit/5d65ae7b63a261a63e8809e5fba857ef3eadb2ac
https://github.com/Cockpit-HQ/Cockpit/blob/2.14.0/modules/App/Controller/Auth.php
Published: 2026-08-29
Updated: 2026-08-29
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N
Severity: Medium
Base Score: 5.3
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Severity: Medium
Base Score: 6.9
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Severity: Medium