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TI-2026-58304 Aliases CVE-2026-84807GHSA-p3c7-g2jr-3m35

Kimai before 2.65.0 Authentication Bypass via Team Creation

Priority LOW 24CWE-266Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Privilege escalation
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-266.

Summary

Kimai (kimai/kimai) before 2.65.0 contains a business logic / improper authorization vulnerability in the default team creation endpoints. An authenticated user with project permission-management privileges can create or use a customer, project, or activity whose name matches an existing team; because the endpoints POST /api/customers/{id}/team, POST /api/projects/{id}/team, and POST /api/activities/{id}/team reuse an existing team of the same name and add the current user as teamlead without verifying that the user is authorized to manage that team, the attacker gains unauthorized team-lead (administration) rights over the existing team. Fixed in 2.65.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00251 16th percentileScored 2026-11-07
Fix Fixed kimai (kimai): 2.65.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
kimaikimaibefore 2.65.02.65.0Patch availableCNA
  • kimai Vendorkimai Affected before 2.65.0 Fixed in 2.65.0 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:kimai:kimai:*:*:*:*:*:*:*:*——kimai
  • cpe:2.3:a:kimai:kimai:*:*:*:*:*:*:*:* Versions — — ·kimai

Remediation

  • Fix · CNA kimai (kimai) Fixed in 2.65.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    kimai 2.65.0

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    • TI-2026-58305 Kimai before 2.65.0 Authorization Bypass via API TimesheetPriority LOW 24
    • TI-2026-58301 Kimai before 2.65.0 Authorization Bypass via Team Activity APIPriority LOW 24
    Show all 3 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-84807
  2. 2026-10-03 Alias added: GHSA-p3c7-g2jr-3m35

References

Advisory 1

  • TI-2023-30240 Kimai 1.30.10 SameSite Cookie Vulnerability Session Hijacking CVSS 4.0HIGH 8.5
  • TI-2026-55437 Kimai before 2.58.0 Authentication Bypass via Password Reset Link CVSS 4.0HIGH 8.7
  • TI-2026-55443 Kimai before 2.56.0 Authorization Bypass via TimesheetVoter CVSS 4.0CRITICAL 9.3
  • TI-2026-22900 Kimai: API invoice endpoint missing customer-level access control (IDOR) CVSS 3.1MEDIUM 6.5
  • TI-2026-55440 Kimai before 2.54.0 Username Enumeration via Timing Oracle CVSS 4.0MEDIUM 6.3
  • TI-2026-37927 Incorrect authorization in kimai CVSS 4.0MEDIUM 6.3
See all 46 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences