CVE-2026-80195
MEDIUMDescription
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.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Exploit Intelligence
Low risk: more likely to be exploited than 20% of all known CVEs.
References
Related Vulnerabilities
Other CWE-841 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2022-1667 | High | 7.5 | 1.2% | - | Fix |
| CVE-2023-4181 | Medium | 5.4 | 1.1% | - | - |
| CVE-2022-2105 | Critical | 9.4 | 1.1% | - | Fix |
| CVE-2022-2102 | Critical | 9.4 | 0.9% | - | Fix |
| CVE-2024-51738 | High | 8.1 | 0.6% | - | Fix |
| CVE-2024-37296 | Medium | 5.3 | 0.5% | - | - |
Common questions
How do I fix CVE-2026-80195?
No published fix for CVE-2026-80195 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2026-80195 being actively exploited?
Not that we know of. CVE-2026-80195 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.28% is the estimated probability that it will be exploited in the next 30 days. That is higher than 20% of all scored CVEs.
How severe is CVE-2026-80195?
CVE-2026-80195 has a CVSS v3 base score of 5.4, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-08-26.