Description

Kimai is an open-source time tracking application. From version 2.27.0 to before version 2.54.0, any ROLE_USER can create a tag with a formula string as its name (e.g. =SUM(54+51)) via POST /api/tags and assign it to a timesheet. When an admin exports timesheets to XLSX, ArrayFormatter.formatValue() joins tag names with implode() and returns the result unchanged. OpenSpout promotes any =-prefixed string to a FormulaCell, writing <f>SUM(54+51)</f> into the XLSX archive. Excel evaluates the formula when the file is opened. This issue has been patched in version 2.54.0.

INFO

Published Date :

2026-05-08T03:28:52.226Z

Last Modified :

2026-05-08T12:58:12.770Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-42267 vulnerability.

Vendors Products
Kimai
  • Kimai
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-42267.

URL Resource
https://github.com/kimai/kimai/releases/tag/2.54.0 cve-icon cve-icon
https://github.com/kimai/kimai/security/advisories/GHSA-3xc2-h5r3-wv3r cve-icon cve-icon cve-icon
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