# CVE-2026-80195

## Summary

- **CVE ID:** CVE-2026-80195
- **Severity:** HIGH
- **CVSS Score:** 8.7 (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-841
- **Published:** Aug 25, 2026
- **Last Modified:** Aug 26, 2026

## Description

Kimai before 2.63.0 contains a business logic / improper authorization vulnerability in the team update API endpoint (PATCH /api/teams/{id}), which removes all existing team members before validating the submitted replacement member list. An authenticated teamlead (or other user) with permission to edit a team can submit a malformed members payload; although Kimai returns a validation error, the existing membership rows have already been deleted. This bypasses the dedicated member-removal endpoint's protection against removing teamleaders and can leave a team with no members or teamleaders, disrupting team-based access control.

## Affected Products

- kimai — kimai (0)
- kimai — kimai (2.63.0)

## References

- [CNA](https://github.com/kimai/kimai/security/advisories/GHSA-6rxf-4hh9-pp46)
- [CNA](https://www.vulncheck.com/advisories/kimai-before-2.63.0-team-membership-removal-via-api)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.28%
- **EPSS Percentile:** 19.9

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._