CVSS 4.0
7.1 highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:L/VA:N/SC:L/SI:L/SA:NCVE-2026-74802
High (7.1). EPSS 0.2% chance of exploitation in the next 30 days. Fixed in github.com/siyuan-note/siyuan/kernel 0.0.0-20260803045322-cb67e0b4fab5.
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.
Severity
CVSS 3.1
8.2 highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N- EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 5% of CVEs (scores of 2026-10-31)
- CWE
- CWE-346
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-3cc2-h3v6-rqpq | Go | github.com/siyuan-note/siyuan/kernel | <0.0.0-20260803045322-cb67e0b4fab5 | 0.0.0-20260803045322-cb67e0b4fab5 |
| GO-2026-6650 | Go | github.com/siyuan-note/siyuan/kernel | <0.0.0-20260803045322-cb67e0b4fab5 | 0.0.0-20260803045322-cb67e0b4fab5 |