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OpenAdvisories
High · 7.1 CVE-2026-52827 EUVD-2026-78408GHSA-v8hx-4vx8-wc96

Kimai: Two-factor authentication bypass on the Kimai API

Published Sep 15, 2026 · Updated Sep 16, 2026 · Assigned by GitHub_M

Description

Kimai is an open-source time tracking application. Prior to 2.59.0, the KIMAI_SESSION cookie issued after password verification but before TOTP completion is accepted by every /api route because config/packages/security.yaml protects the API with IS_AUTHENTICATED and App\API\Authentication\ApiRequestMatcher routes an existing session through the main firewall. A Scheb TwoFactorToken satisfies that access rule, and App\Voter\ApiVoter grants API access to its User, allowing an attacker with a valid account password to use authenticated REST API operations without entering the second factor even though web routes remain blocked. This issue is fixed in version 2.59.0.

Affected products

VendorProductAffectedFixed
kimai kimai < 2.59.0 —

Affected packages

EcosystemPackageAffectedFixedRecord
Packagist kimai/kimai < 2.59.0 2.59.0 GHSA-v8hx-4vx8-wc96

References