CVE-2026-120489

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.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/outline/outline/blob/v1.11.0/server/commands/documentCreator.ts#L135-L143
https://github.com/outline/outline/commit/d249b34e8e5fd465d542cad87190d411fdcbd5dc
https://github.com/outline/outline/releases/tag/v1.12.0
https://github.com/outline/outline/security/advisories/GHSA-h6ff-rw9x-5mq2
https://www.vulncheck.com/advisories/outline-before-1.12.0-incorrect-authorization-via-authorizedocumentpublish-detached-draft

Configurations

No configuration.

History

02 Nov 2026, 15:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-11-02 15:17

Updated : 2026-11-02 19:34

NVD link : CVE-2026-120489

Mitre link : CVE-2026-120489

CVE.ORG link : CVE-2026-120489

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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