Team access revocation via omitted permission checks
Published Sep 2, 2026 · Updated Sep 2, 2026
Improper authorization in Kimai before 2.65.0 allows remote authenticated users to revoke team access through API requests. The DELETE routes for customer, project, and activity assignments remove the team-object binding after checking edit_team but omit the required target object's permission-management check. Exploitation requires an authenticated account with edit_team; it locks team members out of assigned records without exposing, changing, or deleting those records.
Summary
What happened
Improper authorization in Kimai before 2.65.0 allows remote authenticated users to revoke team access through API requests. The DELETE routes for customer, project, and activity assignments remove the team-object binding after checking edit_team but omit the required target object's permission-management check. Exploitation requires an authenticated account with edit_team; it locks team members out of assigned records without exposing, changing, or deleting those records.
The record
- CVE
- CVE-2026-84804
- Published
- Sep 2, 2026
- Updated
- Sep 2, 2026
- Vendor
- Kimai
- Product
- Kimai
- Classifications
- CWE-862, CWE-284, T1531
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 2, 2026CVE publishedPublication date reported by the CVE source.
- Sep 2, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <2.65.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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