What is CVE-2026-72804?

CVE-2026-72804 is a high-severity vulnerability in Siyuan-note Siyuan, classified under Information Disclosure. CVSS score: 8.6/10. Published 2026-08-12.

How severe is CVE-2026-72804?

High severity. CVSS v3 base score is 8.6 out of 10.

Information disclosure in Siyuan-note Siyuan

CVE-2026-72804

SiYuan versions before v3.7.4 fail to validate publish-password tier in getGraph and getLocalGraph endpoints, allowing anonymous readers to retrieve block-level content of password-protected documents. Attackers can call these endpoints wi…

Vulnerability class: Information Disclosure

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N.

Affected products

Siyuan-note Siyuan — versions 0, 3.7.4

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-72804?: CVE-2026-72804 is a high-severity vulnerability in Siyuan-note Siyuan, classified under Information Disclosure. CVSS score: 8.6/10. Published 2026-08-12.
How severe is CVE-2026-72804?: High severity. CVSS v3 base score is 8.6 out of 10.