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Kimai CVE-2026-23626

MEDIUM
Improper Neutralization of Special Elements Used in a Template Engine (CWE-1336)
2026-01-18 security-advisories@github.com GHSA-jg2j-2w24-54cg
CSRF Kimai
6.8
CVSS 3.1 · GitHub Advisory
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Severity by source

GitHub Advisory PRIMARY
6.8 MEDIUM
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

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

4
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
PoC Detected
Feb 18, 2026 - 16:30 vuln.today
Public exploit code
Patch released
Feb 18, 2026 - 16:30 nvd
Patch available
CVE Published
Jan 18, 2026 - 23:15 nvd
MEDIUM 6.8

DescriptionGitHub 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.

AnalysisAI

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. …

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Vulnerability AssessmentAI

Risk Assessment CVSS 6.8 (MEDIUM). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker (requires authentication) could exploit this vulnerability to compromise the affected system.
Remediation A vendor patch is available — apply it immediately. … Detailed patch versions, workarounds, and compensating controls in full report.
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Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. …

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CVE-2026-23626 vulnerability details – vuln.today
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