CVE-2026-84808

MEDIUM 4.3

Kimai before 2.65.0 Authorization Bypass via API Timesheet

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-863
Vendor	kimai
Product	kimai
Published	Sep 2, 2026
Last Updated	Sep 2, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Affected Versions

kimai / kimai

0 < 2.65.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/kimai/kimai/security/advisories/GHSA-c6j4-35fc-x3hw vulncheck.com: https://www.vulncheck.com/advisories/kimai-before-2.65.0-authorization-bypass-via-api-timesheet

Credits

🔍 Rajib-Mahmud