What is CVE-2026-84808?

CVE-2026-84808 is a medium-severity vulnerability in Kimai, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2026-09-02.

How severe is CVE-2026-84808?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Kimai

CVE-2026-84808

Kimai versions before 2.65.0 contain an authorization bypass vulnerability in the REST API timesheet collection endpoint that fails to enforce activity-team access controls. Users with view_other_timesheet permission can list timesheets using activities restricted to teams they do not belong to, bypassing intended data isolation.

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Kimai

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-84808?: CVE-2026-84808 is a medium-severity vulnerability in Kimai, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2026-09-02.
How severe is CVE-2026-84808?: Medium severity. CVSS v3 base score is 4.3 out of 10.