CVE-2026-49992: Kimai CSRF in team creation endpoints

CVE-2026-49992 · Severity: medium · CVSS 4 · Published 2026-09-11

Kimai, an open-source time-tracking application, contains a security flaw that allows unauthorized changes to team and permission structures. By tricking a logged-in administrator into clicking a malicious link, an attacker can force the system to create new teams or reassign project ownership. This could lead to unauthorized access to sensitive project data, reporting errors, and a breakdown of organizational access controls.

Technologies: Kimai, kimai/kimai (Packagist). Vendors: Kimai, Packagist.

Quick answers

Is CVE-2026-49992 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-49992 being exploited in the wild.
How severe is CVE-2026-49992?
Medium severity, with a CVSS score of 4, published 11 September 2026.
Which products and versions are affected?
Kimai <= 2.57.0; kimai/kimai (Packagist) <= 2.57.0, ECOSYSTEM:introduced=0,fixed=2.58.0.
Is there a fix for CVE-2026-49992?
Yes. kimai/kimai (Packagist): upgrade to 2.58.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-49992 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-49992?
Check whether you run Kimai or kimai/kimai (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • kimai/kimai (Packagist): upgrade to 2.58.0 or later
    composer require kimai/kimai:^2.58.0

Technical details

A Cross-Site Request Forgery (CSRF) vulnerability exists in Kimai versions up to 2.57.0 due to the use of GET requests for state-changing operations. Specifically, the endpoints for creating teams for projects, customers, and activities (/en/admin/project/{id}/create_team, etc.) perform persistent writes without proper CSRF protection. An attacker can exploit this by inducing an authenticated user with management permissions to visit a malicious URL. Successful exploitation allows the attacker to create or reuse teams, assign the victim as a team lead, and bind objects to those teams, effectively altering the application's authorization topology. The issue was resolved in version 2.58.0 by migrating these routes to POST endpoints.

Affected products

  • Kimai Kimai <= 2.57.0

Identifiers

  • CVE-2026-49992
  • GHSA-pgcc-vfmc-7cw5

Timeline

  • 2026-06-03: disclosed: Initial disclosure to GitHub Advisory Database
  • 2026-07-13: advisory: GitHub Advisory published and reviewed
  • 2026-07-13: patched: Fix confirmed in version 2.58.0

References

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