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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.003 (26.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 26.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
Weakness classification (CWE)
References
- github.com/geo-chen/oss/blob/main/netbox.md (exploit, third-party-advisory)
- github.com/netbox-community/netbox (product)
- github.com/netbox-community/netbox/blob/v4.7.0/netbox/extras/api/views.py (technical-description)
- github.com/netbox-community/netbox/blob/v4.7.0/netbox/netbox/settings.py (technical-description)
- www.vulncheck.com/advisories/netbox-through-4.7.0-information-disclosure-via-re… (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.