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CVE-2026-39355 - Vulnerability Analysis

CriticalCVSS: 9.9

Last Updated: April 7, 2026

Genealogy - Broken Access Control

Published: April 7, 2026Updated: April 7, 2026Remote Exploitable

Overview

Genealogy < 5.9.1 contains a broken access control vulnerability caused by improper authorization checks in team ownership transfer, letting authenticated users take over arbitrary non-personal teams, exploit requires user authentication.

Severity & Score

Severity: Critical

CVSS Score: 9.9

Impact

Authenticated users can take over other users' teams, gaining unrestricted access to all associated genealogy data.

Mitigation

Upgrade to version 5.9.1 or later.

References

https://github.com/MGeurts/genealogy/security/advisories/GHSA-2rq7-jqm7-w8x4

Related Resources

Vulnerability Intelligence Dashboard
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Details

CVE ID: CVE-2026-39355
Severity: Critical
CVSS Score: 9.9
Type: broken_access_control
Status: new

CWE

CWE-862

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H