CVE-2026-84806
Received Received - Intake

Improper Authorization in Kimai Team Access Endpoints

Publication date: 2026-09-02

Last updated on: 2026-09-02

Assigner: VulnCheck

Description
Kimai before 2.63.0 contains an improper authorization vulnerability in team access endpoints that allows authenticated users with team edit permissions and read-only access to grant team access to customers, projects, or activities. Attackers can exploit insufficient permission checks by sending POST requests to team access endpoints to modify access control lists for entities they should not be able to modify.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-09-02
Last Modified
2026-09-02
Generated
2026-09-02
AI Q&A
2026-09-02
EPSS Evaluated
N/A
NVD
CVE-2026-84806
EUVD
EUVD-2026-69918

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
kimai kimai to 2.63.0 (exc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-732 The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

Kimai before version 2.63.0 has an authorization bypass vulnerability in team access endpoints. Authenticated users with team edit permissions and read-only access can grant team access to customers, projects, or activities they should not modify. The issue stems from insufficient permission checks, allowing attackers to send POST requests to alter access control lists for restricted entities.

Detection Guidance

To detect this vulnerability, check Kimai versions prior to 2.63.0. Verify if authenticated users with team edit permissions can modify access control lists for customers, projects, or activities via POST requests to team access endpoints. Monitor logs for unauthorized POST requests to /team/access endpoints.

Impact Analysis

This vulnerability allows unauthorized users to modify access permissions for customers, projects, or activities. Attackers could escalate their permissions by adding restricted entities to their teams, potentially leading to data exposure or unauthorized actions within the Kimai system.

Mitigation Strategies

Upgrade Kimai to version 2.63.0 or later immediately. Review and restrict team edit permissions to prevent unauthorized access modifications. Audit access control lists for any unauthorized changes made by users with team edit permissions.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-84806. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart