Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-phg7-xcr4-q5wg
- https://www.vulncheck.com/advisories/siyuan-before-brute-force-authentication-vi
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-phg7-xcr4-q5wg
FAQ
What is CVE-2026-74868?
CVE-2026-74868 is a vulnerability with a CVSS score of 7.5 (HIGH). 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). ...
How severe is CVE-2026-74868?
CVE-2026-74868 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-74868?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.