Session Management Flaw in Kimai Time Tracking Application
CVE-2026-52827

7.1HIGH

Key Information:

Vendor

Kimai

Status
Kimai
Vendor
CVE Published:
15 September 2026

What is CVE-2026-52827?

An issue was identified in the Kimai time tracking application where the KIMAI_SESSION cookie, generated after successful password verification but prior to TOTP (Time-based One-Time Password) completion, was improperly accepted by all /api routes. This vulnerability arose due to inadequate restrictions within the app's security configurations. As a result, it allowed authenticated users to execute REST API operations without fulfilling the second factor of authentication, despite protections being enforced on web routes. The vulnerability has been addressed in version 2.59.0.

Affected Version(s)

kimai < 2.59.0

References

https://github.com/kimai/kimai/security/advisories/GHSA-v...
x_refsource_CONFIRM
https://github.com/kimai/kimai/pull/5957
x_refsource_MISC
https://github.com/kimai/kimai/commit/87c85270a98899e6545...
x_refsource_MISC

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.