CVE-2026-44298

4.1 MEDIUM 0.3% exploit odds Fix listed Disclosure Web app

What it is

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.

At a glance

Exploitability: Can be exploited over the network with an admin-level account. Limited direct impact.
Exploit odds: 0.3% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2026-05-08 04:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 10:50 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.3% in the next 30 days (EPSS).
Severity: 4.1 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2026-05-08 04:16 UTC
Last modified: 2026-06-17 10:50 UTC
Exploit probability: 0.3% · EPSS, next 30 days
Weakness: CWE-22 · Path traversal
Record status: Analyzed

Affected

Kimai < 2.56.0

Attack profile CVSS 3.1 · 4.1

Attack vector: Network
Complexity: Low
Privileges needed: High
User interaction: None
Scope: Changed
Confidentiality: Low
Integrity: None
Availability: None

Raw vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N

Is it in your code?

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Read https://cve-list.com/agent/cve/CVE-2026-44298.md and follow it. Check whether this project is affected by CVE-2026-44298. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record