What is CVE-2026-72802?

CVE-2026-72802 is a medium-severity vulnerability in Siyuan-note Siyuan, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.3/10. Published 2026-08-12.

How severe is CVE-2026-72802?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Siyuan-note Siyuan

CVE-2026-72802

SiYuan versions before v3.7.4 contain an information disclosure vulnerability in the resolveAssetPath endpoint that returns absolute filesystem paths unmodified to CheckAuth-only requests. Attackers can harvest relative asset paths from pu…

Vulnerability class: IDOR (Insecure Direct Object Reference)

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Siyuan-note Siyuan — versions 0, 3.7.4

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

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

Frequently asked questions

What is CVE-2026-72802?: CVE-2026-72802 is a medium-severity vulnerability in Siyuan-note Siyuan, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.3/10. Published 2026-08-12.
How severe is CVE-2026-72802?: Medium severity. CVSS v3 base score is 5.3 out of 10.