# CVE-2026-120489: Outline before 1.12.0 Incorrect Authorization via authorizeDocumentPublish() Detached Draft

Status: published. Published: 2026-11-02. Updated: 2026-11-02.

Outline before 1.12.0 contains an incorrect authorization vulnerability in authorizeDocumentPublish() that allows authenticated members to publish documents into private collections without write access. Attackers can detach a child document via documents.unpublish, retaining parentDocumentId, then call documents.update with a private collection UUID to inject phishing content.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Outline / Outline (outline/outline): ≥ 0; < 1.12.0 (affected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 5.3 (medium); CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 4.3 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-863

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/outline/outline/security/advisories/GHSA-h6ff-rw9x-5mq2 (CNA: VulnCheck; vendor-advisory)

- https://github.com/outline/outline/commit/d249b34e8e5fd465d542cad87190d411fdcbd5dc (CNA: VulnCheck; patch)

- https://github.com/outline/outline/releases/tag/v1.12.0 (CNA: VulnCheck; release-notes)

- https://github.com/outline/outline/blob/v1.11.0/server/commands/documentCreator.ts#L135-L143 (CNA: VulnCheck; technical-description)

- https://www.vulncheck.com/advisories/outline-before-1.12.0-incorrect-authorization-via-authorizedocumentpublish-detached-draft (CNA: VulnCheck; third-party-advisory)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-120489; retrieved 2026-11-02; source updated 2026-11-02

Revision: a3d9c135fc0ed40d2e831a09f200409a1d38a85e5db1712ead206cd461f51cd2

Canonical: https://y2.dev/cve/CVE-2026-120489

## 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 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.

Collected public records only. Check source status for coverage and freshness.