CVE-2026-120489: Outline Outline

Outline before 1.12.0 Incorrect Authorization via authorizeDocumentPublish() Detached Draft

CVSS 5.3 MediumEPSS 0.0024 · 15th percentile

Published by the CVE Program (CNA: VulnCheck) at 2 Nov 2026, 14:29 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Outline	Outline pkg:github/outline/outline	affected before 1.12.0 semver Other versions: unaffected

Identifiers

CVE-2026-120489

CNA

VulnCheck

Weakness (CWE)

CWE-863

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
5.3	Medium	4.0	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	CNA (VulnCheck)Used for this record
4.3	Medium	3.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N	CNA (VulnCheck)

CISA KEV Not listed.
EPSS 0.0024, the 15th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

2 Nov 2026, 14:29 UTC Confirmed by the CVE List
2 Nov 2026, 14:37 UTC First seen by agentprime
2 Nov 2026, 15:17 UTC Confirmed by NVD

Sources

References from the CNA

github.com/outline/outline/security/advisories/GHSA-h6ff-rw9x-5mq2 vendor-advisory
github.com/outline/outline/commit/d249b34e8e5fd465d542cad87190d411fdcbd5dc patch
github.com/outline/outline/releases/tag/v1.12.0 release-notes
github.com/outline/outline/blob/v1.11.0/server/commands/documentCreator.ts#L135-L143 technical-description
www.vulncheck.com/advisories/outline-before-1.12.0-incorrect-authorization-via-authorizedocumentpublish-detached-draft third-party-advisory

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.