# CVE-2026-120449: Outline before 1.12.0 Improper Access Control via Public Document Shares

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

Outline before 1.12.0 contains an improper access control vulnerability that allows unauthenticated users to read unpublished documents because the share loader ignores unpublished status. Attackers holding an existing share link can query shares.info, documents.info, or the /s/ share routes to read withdrawn content, while shares.revoke returns 404 and blocks revocation.

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

- CVSS 3.1: 5.3 (medium); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: exploitation poc; automatable yes; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-672

## Exploit evidence

- exploit: https://github.com/outline/outline/security/advisories/GHSA-rq53-m97j-f2pg (ADP: CISA-ADP)

## References

- https://github.com/outline/outline/security/advisories/GHSA-rq53-m97j-f2pg (CNA: VulnCheck; vendor-advisory)

- https://github.com/outline/outline/commit/d015a32459b5f5c5a8ef67aeb81742eeab430c52 (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/shareLoader.ts#L50-L77 (CNA: VulnCheck; technical-description)

- https://www.vulncheck.com/advisories/outline-before-1.12.0-improper-access-control-via-public-document-shares (CNA: VulnCheck; third-party-advisory)

- https://github.com/outline/outline/security/advisories/GHSA-rq53-m97j-f2pg (ADP: CISA-ADP; exploit)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-120449; retrieved 2026-11-02; source updated 2026-11-02

Revision: 15fd6ad022545764d9b00b42f0c413cf991a54338ccea84f2a7acde882ca3e77

Canonical: https://y2.dev/cve/CVE-2026-120449

## 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.