Vulnerability in Outline
CVE-2026-120449
Outline before 1.12.0 contains an improper access control vulnerability that allows unauthenticated users to read unpublished documents because the share loader ignores unpublished status. Attackers holding an existing share link can query shares.info, documents.info, or the /s/ share routes to read withdrawn content, while shares.revoke returns 404 and blocks revocation.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/outline/outline/security/advisories/GHSA-rq53-m97j-f2pg (vendor-advisory)
- github.com/outline/outline/commit/d015a32459b5f5c5a8ef67aeb81742eeab430c52 (patch)
- github.com/outline/outline/releases/tag/v1.12.0 (release-notes)
- github.com/outline/outline/blob/v1.11.0/server/commands/shareLoader.ts (technical-description)
- www.vulncheck.com/advisories/outline-before-1.12.0-improper-access-control-via-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-120449?
- CVE-2026-120449 is a medium-severity vulnerability in Outline, classified under Operation on a Resource after Expiration or Release. CVSS score: 5.3/10. Published 2026-11-02.
- How severe is CVE-2026-120449?
- Medium severity. CVSS v3 base score is 5.3 out of 10.