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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
kimai kimai unaffected
Version Status Constraints
0 affected < 2.65.0
2.65.0 unaffected —

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No data.

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Project Subscriptions

Vendors Products
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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

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

Wed, 02 Sep 2026 11:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Kimai before 2.65.0 Authorization Bypass via API Timesheet
First Time appeared Kimai
Kimai kimai
Weaknesses CWE-863
CPEs cpe:2.3:a:kimai:kimai:*:*:*:*:*:*:*:*
Vendors & Products Kimai
Kimai kimai
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}

cvssV4_0

{'score': 5.3, 'vector': '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-02T13:51:07.056Z

Reserved: 2026-09-02T10:19:32.991Z

Link: CVE-2026-84808

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-09-02T12:17:17.870

Modified: 2026-09-02T13:54:48.797

Link: CVE-2026-84808

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-02T13:00:13Z

Weaknesses