CVE-2026-44298: Kimai is an open-source time tracking application

Routine

MEDIUM 4.1UPGRADE

CVE-2026-44298 is a medium-severity flaw (CVSS 4.1) affecting kimai. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 embe

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.3% (top 80%)
CISA exploited list	No
Weakness	CWE-22
Published	2026-05-08
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: kimai

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-08 04:16 UTCPublished CVE record published
2026-06-17 10:50 UTCUpdated Record last modified

kimai kimai UPGRADE

Affected: >= 2.32.0 and < 2.56.0

Fixed in: 2.56.0

Safe to downgrade to: a release before 2.32.0

1. Check installed version

apt-cache policy kimai || rpm -q kimai || kimai --version

2. UPGRADE to 2.56.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade kimai

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade kimai

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 2.32.0 (Debian / Ubuntu)

apt-cache madison kimai sudo apt install kimai=<VERSION_BEFORE_2.32.0> sudo apt-mark hold kimai

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list kimai sudo dnf downgrade kimai-<VERSION_BEFORE_2.32.0> sudo dnf versionlock add kimai

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-44298?

kimai: upgrade to 2.56.0. Exact commands for each OS are on this page.

Is CVE-2026-44298 being exploited?

CVE-2026-44298 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-44298 affect?

CVE-2026-44298 affects kimai. Severity is medium (CVSS 4.1). 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

How urgent is CVE-2026-44298?

Priority 19/100. No elevated risk signals yet.

Related CVEs

CVE-2026-42267 MEDIUM 5.7 UPGRADE Kimai is an open-source time tracking application
CVE-2026-41498 LOW 3.3 UPGRADE Kimai is an open-source time tracking application
CVE-2026-40486 MEDIUM 4.3 UPGRADE Kimai is an open-source time tracking application
CVE-2026-40479 MEDIUM 5.4 UPGRADE Kimai is an open-source time tracking application
CVE-2026-28685 MEDIUM 6.5 UPGRADE Kimai is a web-based multi-user time-tracking application

References

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