Vulnerability · Published Feb 11, 2026 · Assigned by GitHub_M

CVE-2025-68663Outline has a suspended user authentication bypass via WebSocket connections

Medium 6.9

In plain English

A medium-severity improper authentication in outline from outline. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities).

Severity (CVSS 4.0)6.9Medium

Exploit odds (30 days)0.3%top 79.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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 connections and continue receiving sensitive operational updates after their account has been suspended. This vulnerability is fixed in 1.1.0.

Affected products (as reported)

Vendor	Product	Versions
outline	outline	< 1.1.0

Weakness: CWE-287 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

References

https://github.com/outline/outline/security/advisories/GHSA-mx2c-3g2x-5m9m x_refsource_CONFIRM
https://github.com/outline/outline/releases/tag/v1.1.0 x_refsource_MISC