Kimai
CVE-2026-23626
MEDIUM
GHSA-jg2j-2w24-54cg
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V1 - Encoding and Sanitization Template injection prevention
|
| Impact | CVSS 6.8 (MEDIUM). Attack vector: Network. Complexity: Low. Privileges required: High. User interaction: None. Exploitation requires authentication. Public exploit/POC available. |
| Exploit ScenarioDerived | An attacker (requires authentication) could exploit this vulnerability to compromise the affected system. |
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAIv1 – Mar 12, 2026
Kimai versions prior to 2.46.0 contain an overly permissive Twig sandbox configuration in the export functionality that allows authenticated users with export permissions to execute arbitrary method calls and extract sensitive data such as environment variables, password hashes, and session tokens. Public exploit code exists for this vulnerability. The issue is resolved in version 2.46.0 and later.
Earlier versions of this analysis (1)
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. [CVSS 6.8 MEDIUM]
RemediationAI
A vendor patch is available — apply it immediately. Restrict network access to the affected service where possible.
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in composer
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Affects Kimai. 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. Vers
Know when Kimai gets its next vulnerability
- Watch products and get an email when something new is published
- Check this CVE against your own stack and servers
- Exploit and PoC references, threat intelligence from 22 sources
No credit card · 7-day full trial
Severity by source
AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
Lifecycle Timeline
3DescriptionGitHub Advisory
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.
Executive ViewAI
Organizations using Kimai should be aware of notable risk from CVE-2026-23626 rated CVSS 6.8. Exploitation could compromise the security of affected deployments. Proof-of-concept code is publicly available. A patch is available and should be applied during regular vulnerability management.
Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Request Forgery exploits the automatic credential inclusion behavior of web browsers.
Affected Products (CPE)GitHub Advisory
Account takeover in Kimai time-tracking software (versions <= 2.57.0) stems from the official Docker image shipping a pu
kimai2 is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'). Rated crit
Kimai is a web-based multi-user time-tracking application. Rated high severity (CVSS 7.2), this vulnerability is remotel
Kimai versions prior to 2.51.0 lack proper customer-level access controls in the invoice API endpoint, allowing any user
Kimai is a web-based multi-user time-tracking application. Rated medium severity (CVSS 6.5), this vulnerability is remot
kimai2 is vulnerable to Cross-Site Request Forgery (CSRF). Rated medium severity (CVSS 6.5), this vulnerability is remot
kimai2 is vulnerable to Cross-Site Request Forgery (CSRF). Rated medium severity (CVSS 6.5), this vulnerability is remot
Authorization bypass in the Kimai open-source time-tracking application before 2.56.0 lets any authenticated user holdin
Kimai 2 contains a persistent cross-site scripting vulnerability that allows attackers to inject malicious scripts into
Password reset links in Kimai before 2.58.0 function as persistent authentication credentials because the LoginLink HMAC
Authorization bypass in Kimai's QuickEntry controller allows authenticated network users holding view_other_timesheet an
Kimai's Twig sandbox exposes server-wide secrets through an unrestricted config() function in administrator-uploaded inv
Exploit-DB