Kimai versions before 2.65.0 contain an authorization bypass vulnerability in the REST API timesheet collection endpoint that fails to enforce… (CVE-2026-84808)
Description
Kimai versions before 2.65.0 have an authorization bypass vulnerability in the REST API timesheet collection endpoint. This flaw allows users with the view_other_timesheet permission to list timesheets associated with activities restricted to teams they do not belong to, bypassing intended access controls and data isolation.
CVSS v3.1
Score 4.3medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability (CVE-2026-84808) in Kimai affects versions prior to 2.65.0 and involves an authorization bypass in the REST API timesheet collection endpoint. The endpoint fails to enforce activity-team access controls properly, enabling users with the view_other_timesheet permission to access timesheets for activities outside their authorized teams. This is classified under CWE-863 (Incorrect Authorization). The CVSS v3.1 score is 4.3 (medium severity), with network attack vector, low attack complexity, requiring low privileges and no user interaction, impacting confidentiality only.
Potential Impact
An attacker with the view_other_timesheet permission can access timesheet data from teams they are not authorized to view, potentially exposing sensitive or restricted information. There is no impact on integrity or availability reported.
Mitigation Recommendations
A fix is available in Kimai version 2.65.0. Users should upgrade to version 2.65.0 or later to remediate this authorization bypass vulnerability. No other mitigation steps are indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-c4jr-h3rc-c3hg
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-84808"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6a98451eacd9273b496a9bb0
Added to database: 09/02/2026, 15:47:42 UTC
Last enriched: 09/08/2026, 02:53:56 UTC
Last updated: 10/16/2026, 06:48:19 UTC
Views: 29
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.