CVE-2026-84804 json
Kimai before 2.65.0 Authorization Bypass via Team Activity API
published 2mo ago modified 2mo ago also EUVD-2026-69916 , GHSA-mc86-77vp-82g3
Unreviewed: the maintainers' own advisory
Published by the maintainers on their GitHub repository kimai/kimai. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.
- cvss
- 5.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 26%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- kimai kimai 2.65.0
Is CVE-2026-84804 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2mo ago
Exploit prediction
0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 5.3 | 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 |
| CNA | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L |
| CNA | 4.0 | 5.3 | 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 |
Affected products
- kimai kimai
Classification
- Weakness
-
- CWE-284 Improper Access Control
References
-
github.com
/kimai/kimai/security/advisories/GHSA-mc86-77vp-82g3
vendor-advisory, advisory
-
vulncheck.com
/advisories/kimai-before-2.65.0-authorization-bypass-via-team-activity-api
third-party-advisory
Sources
- CVE List CVE-2026-84804
- NVD CVE-2026-84804
- Maintainer advisory GHSA-mc86-77vp-82g3
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
The maintainers of kimai/kimai published their own advisory on GitHub. Reviewed sources take precedence over it.