CVE-2025-64487

Outline is vulnerable to privilege escalation vulnerability in document sharing

State: Published
Severity: 7.6 High
Published: Feb 11, 2026
Updated: Feb 11, 2026
Reserved: Nov 5, 2025

Description

Outline is a service that allows for collaborative documentation. Prior to 1.1.0, a privilege escalation vulnerability exists in the Outline document management system due to inconsistent authorization checks between user and group membership management endpoints. This vulnerability is fixed in 1.1.0.

Scores

CVSS	Score	Vector	Source
3.1	7.6 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N	GitHub_M

Weaknesses

CWE-269 Improper Privilege Management

Affected Products

Product	Versions
outlineoutline	<= 1.0.1Affected

References

https://github.com/outline/outline/security/advisories/GHSA-c8xf-3j86-7686
https://github.com/outline/outline/releases/tag/v1.1.0

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