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CVE PROGRAM SOURCE RECORD7.1 High

CVE-2026-74802

SiYuan 3.7.3 Cross-Site WebSocket Hijacking via network proxy

Description

SiYuan versions before 3.7.4 contain a cross-site WebSocket hijacking vulnerability in the admin-only /ws/network/proxy endpoint that explicitly disables origin validation by setting CheckOrigin to unconditionally return true. Attackers can craft malicious webpages that establish WebSocket connections to this endpoint and direct the SiYuan kernel process to proxy arbitrary network traffic to attacker-chosen targets, enabling authenticated network pivoting through the victim's machine.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

siyuan-note siyuan

Default version status: unaffected

  • 0 to < 3.7.4affected
  • 3.7.4unaffected
pkg:golang/github.com/siyuan-note/siyuan/kernel

References