CVE-2026-69117
NetBox 4.5.8 ORM Injection via WritableNestedSerializer
NetBox 4.5.8 contains an ORM injection vulnerability that allows authenticated attackers, including those with read-only API tokens, to inject arbitrary Django ORM lookup expressions into nested object references by supplying crafted JSON dictionary keys in POST, PUT, or PATCH requests to any REST API endpoint. Attackers can exploit the unrestricted queryset used by WritableNestedSerializer to perform boolean-based blind data extraction of sensitive field values and bypass object-level permissions across all application modules including dcim, ipam, tenancy, virtualization, circuits, and extras.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulnCheckFix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulnCheckAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| NetBox NetBox Labs |
≥ 0; ≤ 4.5.8 (affected, semver)
Other versions: affected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 7.1 high |
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | CNA: VulnCheck |
| 3.1 / 6.5 medium |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | CNA: VulnCheck |
Exploit evidence
- https://github.com/netbox-community/netbox/issues/21988
exploit · ADP: CISA-ADP
References
- https://github.com/netbox-community/netboxCNA: VulnCheck · product
- https://github.com/netbox-community/netbox/issues/21988CNA: VulnCheck · issue-tracking
- https://github.com/netbox-community/netbox/commit/b3489cd529ca00703a0b7fe4c45e91539add6df6CNA: VulnCheck · patch
- https://github.com/netbox-community/netbox/pull/22013CNA: VulnCheck · issue-tracking, patch
- https://www.vulncheck.com/advisories/netbox-orm-injection-via-writablenestedserializerCNA: VulnCheck · third-party-advisory
- https://github.com/netbox-community/netbox/issues/21988ADP: CISA-ADP · exploit
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