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

Status: published. Published: 2026-08-11. Updated: 2026-11-08.

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.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/netbox-community/netbox/commit/b3489cd529ca00703a0b7fe4c45e91539add6df6
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/netbox-community/netbox/pull/22013

## Affected products and versions

- NetBox Labs / NetBox: ≥ 0; ≤ 4.5.8 (affected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 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; source: CNA: VulnCheck

- CVSS 3.1: 6.5 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: 0.32% as of 2026-11-08; percentile 24.88%

- SSVC: exploitation poc; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-639

## Exploit evidence

- exploit: https://github.com/netbox-community/netbox/issues/21988 (ADP: CISA-ADP)

## References

- https://github.com/netbox-community/netbox (CNA: VulnCheck; product)

- https://github.com/netbox-community/netbox/issues/21988 (CNA: VulnCheck; issue-tracking)

- https://github.com/netbox-community/netbox/commit/b3489cd529ca00703a0b7fe4c45e91539add6df6 (CNA: VulnCheck; patch)

- https://github.com/netbox-community/netbox/pull/22013 (CNA: VulnCheck; issue-tracking, patch)

- https://www.vulncheck.com/advisories/netbox-orm-injection-via-writablenestedserializer (CNA: VulnCheck; third-party-advisory)

- https://github.com/netbox-community/netbox/issues/21988 (ADP: CISA-ADP; exploit)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-69117; retrieved 2026-11-08; source updated 2026-11-08

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-69117; retrieved 2026-11-08; source updated Not reported

Revision: 46ffa28e6d86611ecbaaa69c48af8ae7d2dad95f16117eb5b0f34b542c35631d

Canonical: https://y2.dev/cve/CVE-2026-69117

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

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