Kimai is a web-based multi-user time-tracking application. Prior to version 2.51.0, "GET /api/invoices/{id}" only checks the role-based viewinvoice permission but does not verify the requesting user has access to the invoice's customer. Any user with ROLETEAMLEAD (which grants view_invoice) can read all invoices in the system, including those belonging to customers assigned to other teams. This issue has been patched in version 2.51.0.
{
"cwe_ids": [
"CWE-285"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28685.json",
"cna_assigner": "GitHub_M"
}