What is CVE-2026-86176?

CVE-2026-86176 is a medium-severity vulnerability in Netbox-Community Netbox, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-09-05.

How severe is CVE-2026-86176?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Netbox-Community Netbox

CVE-2026-86176

NetBox through 4.7.0 fails to properly scope user-private records in REST and GraphQL API endpoints for Notifications, Subscriptions, and Bookmarks. Authenticated users with view permissions can access all users' private records through unscoped querysets, disclosing which users watch or bookmark which objects.

Vulnerability class: IDOR (Insecure Direct Object Reference)

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Netbox-community Netbox

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

disclosure@vulncheck.com (exploit, third-party-advisory)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (technical-description)
disclosure@vulncheck.com (technical-description)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-86176?: CVE-2026-86176 is a medium-severity vulnerability in Netbox-Community Netbox, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-09-05.
How severe is CVE-2026-86176?: Medium severity. CVSS v3 base score is 4.3 out of 10.