Authorization Flaw in Kimai Multi-user Time Tracking Application
CVE-2026-28685

6.5MEDIUM

Key Information:

Vendor

Kimai

Status
Kimai
Vendor
CVE Published:
6 March 2026

What is CVE-2026-28685?

Kimai, a web-based multi-user time-tracking application, has an authorization flaw that allows users with ROLE_TEAMLEAD to access all invoices in the system, irrespective of the associated customers. This issue arises because the application does not properly verify if the requesting user has the appropriate permissions for the specific customer tied to the invoice. This vulnerability impacts all versions prior to 2.51.0 and has been addressed in the latest update.

Affected Version(s)

kimai < 2.51.0

References

https://github.com/kimai/kimai/security/advisories/GHSA-v...
x_refsource_CONFIRM
https://github.com/kimai/kimai/commit/a0601c8cb28fed1cca1...
x_refsource_MISC
https://github.com/kimai/kimai/releases/tag/2.51.0
x_refsource_MISC

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.