What is CVE-2025-68663?

CVE-2025-68663 is a medium-severity vulnerability in Getoutline Outline, classified under Improper Authentication. CVSS score: 5.3/10. Published 2026-02-11.

How severe is CVE-2025-68663?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Getoutline Outline

CVE-2025-68663

Outline is a service that allows for collaborative documentation. Prior to 1.1.0, a vulnerability was found in Outline's WebSocket authentication mechanism that allows suspended users to maintain or establish real-time WebSocket connection…

Vulnerability class: Broken Authentication

EPSS: 0.002 (14.6th percentile) — read the EPSS interpretation.

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.

Affected products

Getoutline Outline
Outline — versions < 1.1.0

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
security-advisories@github.com (x_refsource_MISC, Release Notes)

Frequently asked questions

What is CVE-2025-68663?: CVE-2025-68663 is a medium-severity vulnerability in Getoutline Outline, classified under Improper Authentication. CVSS score: 5.3/10. Published 2026-02-11.
How severe is CVE-2025-68663?: Medium severity. CVSS v3 base score is 5.3 out of 10.