CVE-2026-52825 Details
Description
Kimai is an open-source time tracking application. Prior to 2.58.0, POST /api/teams/{id}/members/{userId} and POST /api/teams/{id}/activities/{activityId} verify that a teamlead may edit the Team but do not verify access_user for the referenced User or view access for the referenced Activity. A teamlead can add users or activities outside the teamlead's manageable scope to an editable team, bypassing the narrower choices enforced by TeamEditForm and UserRepository::getQueryBuilderForFormType(). The resulting relationships can be trusted by RolePermissionManager::checkTeamAccessActivity() and other team-based authorization, visibility, reporting, and workflow logic. This issue is fixed in version 2.58.0.
A vulnerability exists in Kimai, an open-source time tracking application, in versions prior to 2.58.0. The issue is located in the Team management API endpoints, specifically 'POST /api/teams/{id}/members/{userId}' and 'POST /api/teams/{id}/activities/{activityId}'. The vulnerability arises from improper authorization checks, allowing a Teamlead to add users or activities that are outside their authorized management scope. This is possible because the API only verifies if the Teamlead can edit the team, without checking if the referenced user or activity is within their allowed visibility. As a result, Teamleads can manipulate team assignments in a way that bypasses intended access controls, potentially leading to unauthorized visibility or access to data.
Users are advised to update Kimai to version 2.58.0 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 15, 2026CISA-ADP
Assessed Sep 15, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/kimai/kimai/commit/31a8f887a5cda517db7b4320a7ad997c87d08601 | [email protected] | Source CodeVendor |
| https://github.com/kimai/kimai/pull/5952 | [email protected] | Source CodeVendor |
| https://github.com/kimai/kimai/releases/tag/2.58.0 | [email protected] | Release NotesVendor |
| https://github.com/kimai/kimai/security/advisories/GHSA-xv4r-4885-gwpg | [email protected] | AdvisoryRemedyVendor |
| https://www.kimai.org/en/security/ghsa-xv4r-4885-gwpg | [email protected] | AdvisoryRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-285 | Improper Authorization | [email protected] |
| CWE-862 | Missing Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Kimai | <= 2.57.0 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 15, 2026 | CVE Modified | CISA-ADP |
| Sep 15, 2026 | New CVE Received | [email protected] |