[ CVE-2026-120489 · Published 2 Nov 2026 ]
Vulnerability in Outline
CVSS 4.3
EPSS <1%No fix listed yet
[ Description ]Official description
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.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ References ]References
- github.com/outline/outline/blob/v1.11.0/server/commands/documentCreator.ts
- github.com/outline/outline/commit/d249b34e8e5fd465d542cad87190d411fdcbd5dc
- github.com/outline/outline/releases/tag/v1.12.0
- github.com/outline/outline/security/advisories/GHSA-h6ff-rw9x-5mq2
- www.vulncheck.com/advisories/outline-before-1.12.0-incorrect-authorization-via-authoriz…