CVE-2026-84804 PUBLISHED

Kimai before 2.65.0 Authorization Bypass via Team Activity API

Assigner: VulnCheck
Reserved: 02.09.2026 Published: 02.09.2026 Updated: 02.09.2026

Kimai before 2.65.0 fails to properly validate permissions when removing team access to activities, projects, and customers via API endpoints. Authenticated users with edit_team permission can revoke team access without the required permissions_activity check, bypassing authorization controls.

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
CVSS Score: 5.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	Low	Integrity	None
Attack Requirements	None	Availability	Low	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
CVSS Score: 5.4

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	Low	Integrity Impact	Low
User Interaction	None	Availability Impact	Low

CVSS 3.1

Product Status

Vendor	kimai
Product	kimai
Versions	Default: unaffected affected from 0 to 2.65.0 (excl.) Version 2.65.0 is unaffected

CVE-2026-84804 PUBLISHED

Kimai before 2.65.0 Authorization Bypass via Team Activity API

Metrics

Product Status

Credits

References

Problem Types