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Kimai EUVDEUVD-2026-69916

| CVE-2026-84804 MEDIUM
Improper Access Control (CWE-284)
2026-09-02 VulnCheck GHSA-xcvc-fv83-5g8g
5.3
CVSS 4.0 · Vendor: VulnCheck
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Severity by source

Vendor (VulnCheck) PRIMARY
5.3 MEDIUM
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
5.4 MEDIUM

Network-reachable API requires authenticated low-privilege account (PR:L); no confidentiality impact; integrity and availability both low as only team-resource linkages can be severed.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

Primary rating from Vendor (VulnCheck).

CVSS VectorVendor: VulnCheck

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

3
Patch available
Sep 02, 2026 - 13:02 EUVD
Metadata Corrected
Sep 02, 2026 - 12:40 vuln.today
tag: Authentication Bypass removed
Analysis Generated
Sep 02, 2026 - 11:52 vuln.today

DescriptionCVE.org

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.

AnalysisAI

Authorization bypass in Kimai before 2.65.0 allows authenticated users holding the edit_team permission to revoke team access to activities, projects, and customers via API endpoints without passing the required permissions_activity check. This breaks Kimai's intended multi-layered permission model, enabling a lower-privileged operator to sever team-level associations to sensitive time-tracking resources they are not authorized to modify. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Delivery
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Exploit
technique details hidden
Execution
technique details hidden
Impact
technique details hidden

Vulnerability AssessmentAI

Exploitation Exploitation requires a valid Kimai account with the edit_team permission explicitly granted - anonymous users and accounts without this role cannot exploit the flaw. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 score of 5.3 (Medium) with vector AV:N/AC:L/AT:N/PR:L/UI:N reflects a remotely exploitable flaw requiring only a valid low-privilege account and no additional conditions, which is accurate. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Vendor-released patch: 2.65.0. … Detailed patch versions, workarounds, and compensating controls in full report.

Threat intelligence, references, and detailed analysis are available after sign-in.

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EUVD-2026-69916 vulnerability details – vuln.today

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