CVE-2026-84808CWE-863broken-access-control

CVE-2026-84808

Medium · published September 2, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
22.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00305 · 22.1th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-09-02T16:17Z
References (2)
https://github.com/kimai/kimai/security/advisories/GHSA-c6j4-35fc-x3hw · [email protected]https://www.vulncheck.com/advisories/kimai-before-2.65.0-authorization-bypass-via-api-timesheet · [email protected]
EPSS history
Timeline
  • 04 SEP 03:44Z
    EPSS moved — → 0%
    epss
  • 02 SEP 11:11Z
    Kimai before 2.65.0 Authorization Bypass via API Timesheet
    cvelistv5