CVE-2026-28685: Kimai is a web-based multi-user time-tracking application

Q: How do I fix CVE-2026-28685?

kimai: upgrade to 2.51.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-28685 being exploited?

CVE-2026-28685 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-28685 affect?

CVE-2026-28685 affects kimai. Severity is medium (CVSS 6.5). Kimai is a web-based multi-user time-tracking application. Prior to version 2.51.0, "GET /api/invoices/{id}" only checks the role-based view_invoice permission but does not verify the requesting user has access to the invoice's customer. An

Q: How urgent is CVE-2026-28685?

Priority 37/100. Public exploit reference

Routine

MEDIUM 6.5UPGRADE

CVE-2026-28685 is a medium-severity flaw (CVSS 6.5) affecting kimai. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Kimai is a web-based multi-user time-tracking application. Prior to version 2.51.0, "GET /api/invoices/{id}" only checks the role-based view_invoice permission but does not verify the requesting user has access to the invoice's customer. Any user with ROLE_TEAMLEAD (which grants view_invoice) can read all invoices in the system, including those belonging to customers assigned to other teams. This issue has been patched in version 2.51.0.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 63%)
CISA exploited list	No
Weakness	CWE-285
Published	2026-03-06
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

2026-03-06 05:16 UTCPublished CVE record published
2026-06-17 10:28 UTCUpdated Record last modified

kimai kimai UPGRADE

Affected: < 2.51.0

Fixed in: 2.51.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 2.51.0 (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.

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-2026-28685?

kimai: upgrade to 2.51.0. Exact commands for each OS are on this page.

Is CVE-2026-28685 being exploited?

CVE-2026-28685 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-2026-28685 affect?

CVE-2026-28685 affects kimai. Severity is medium (CVSS 6.5). Kimai is a web-based multi-user time-tracking application. Prior to version 2.51.0, "GET /api/invoices/{id}" only checks the role-based view_invoice permission but does not verify the requesting user has access to the invoice's customer. An

How urgent is CVE-2026-28685?

Priority 37/100. Public exploit reference

Related CVEs

CVE-2026-44298 MEDIUM 4.1 UPGRADE Kimai is an open-source time tracking application
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

References

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