CVE-2026-74868
Description
SiYuan versions before 3.7.4 contain an unthrottled brute-force vulnerability in the Publish Service Basic Auth implementation (PublishServiceTransport.RoundTrip() in kernel/server/proxy/publish.go). The Publish Service runs on a separate, unauthenticated-by-default listener (default TCP port 6808) and gates named publish-viewer accounts (Conf.Publish.Auth.Accounts) with Basic Auth that has no rate limiting, per-account lockout, or backoff. Unauthenticated remote attackers can submit unlimited password guesses against named accounts to gain access to published notes/notebooks.
How to fix
- siyuan-note siyuan3.7.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| siyuan-note siyuan | v < 3.7.4 | 3.7.4 |
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