CVE-2026-23626 MEDIUM

CVE-2026-23626: Kimai Vulnerable to Authenticated Server-Side Template Injection (SSTI)

Vendor Kimai
Product kimai
Weakness CWE-1336
Published January 18, 2026
Last update January 20, 2026

CVSS base score

6.8/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

What the vulnerability does

01Description

Kimai is a web-based multi-user time-tracking application. Prior to version 2.46.0, Kimai's export functionality uses a Twig sandbox with an overly permissive security policy (`DefaultPolicy`) that allows arbitrary method calls on objects available in the template context. An authenticated user with export permissions can deploy a malicious Twig template that extracts sensitive information including environment variables, all user password hashes, serialized session tokens, and CSRF tokens. Version 2.46.0 patches this issue.

Key dates

02Disclosure timeline

January 18, 2026 CVE published
January 20, 2026 Record updated