CVE-2026-80199: medium-severity vulnerability in kimai
Kimai before 2.54.0 Username Enumeration via Timing Oracle
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.3epss 0.3%
Kimai before 2.54.0 contains a timing oracle vulnerability in TokenAuthenticator that allows unauthenticated attackers to enumerate valid usernames via X-AUTH-USER header. Attackers can measure response time differences when the password hasher runs only for existing users, enabling username enumeration with no login throttling protection.
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products
kimai · kimaiRelated CVEs — kimai
In the same product, most dangerous first.
CVE-2023-46245HIGHKimai (Authenticated) SSTI to RCE by Uploading a Malicious Twig FileEPSS 1.8%CVE-2026-52824CRITICALKimai: Default APP_SECRET in Docker Image Enables Cookie Forgery and Account TakeoverEPSS 1.3%CVE-2024-29200MEDIUMAPI returns timesheet entries a user should not be authorized to viewEPSS 0.6%CVE-2026-52827HIGHKimai: Two-factor authentication bypass on the Kimai APIEPSS 0.6%CVE-2026-52819MEDIUMKimai: Teamlead authorization bypass in GET /api/timesheets allows reading other users' timesheet records without being teamlead of the targetEPSS 0.5%CVE-2026-80196HIGHKimai before 2.58.0 Authentication Bypass via Password Reset LinkEPSS 0.5%