This advisory has been withdrawn because it is a duplicate of GHSA-mw8r-mw84-88v2. This link is maintained to preserve external references.
SiYuan versions before v3.7.4 contain a publish-boundary bypass vulnerability in WebSocket broadcast sessions that allows anonymous readers to receive unfiltered edits. Attackers can establish a WebSocket connection to the publish surface and passively receive real-time content events including password-protected and forbidden documents without authentication.
{
"cwe_ids": [
"CWE-862"
],
"github_reviewed": true,
"github_reviewed_at": "2026-09-03T22:30:11Z",
"nvd_published_at": "2026-08-14T12:16:43Z",
"severity": "CRITICAL"
}