CVE-2026-44298

Kimai is an open-source time tracking application. From version 2.32.0 to before version 2.56.0, users with the role System-Admin (ROLE_SYSTE_ADMIN) and the permission upload_invoice_template can upload PDF invoice templates, which can call pdfContext.setOption('associated_files', ...) inside the sandboxed Twig render. This is forwarded to mPDF's SetAssociatedFiles(), whose writer calls file_get_contents($entry['path']) during PDF output and embeds the bytes as a FlateDecode stream in the PDF. Any file readable by the PHP worker is returned to the attacker inside the rendered invoice. This issue has been patched in version 2.56.0.

The following products are affected by CVE-2026-44298 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-44298.

URL	Resource
https://github.com/kimai/kimai/releases/tag/2.56.0
https://github.com/kimai/kimai/security/advisories/GHSA-h5fh-7hwr-97mw