Path Traversal in Kimai
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (33.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 33.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- Kimai — versions >= 2.32.0, < 2.56.0
Weakness classification (CWE)
References
- github.com/kimai/kimai/security/advisories/GHSA-h5fh-7hwr-97mw (Mitigation, Vendor Advisory)
- github.com/kimai/kimai/releases/tag/2.56.0 (Release Notes)
Frequently asked questions
- What is CVE-2026-44298?
- CVE-2026-44298 is a medium-severity vulnerability in Kimai, classified under Path Traversal. CVSS score: 4.1/10. Published 2026-05-08.
- How severe is CVE-2026-44298?
- Medium severity. CVSS v3 base score is 4.1 out of 10.