What is CVE-2026-72794?

CVE-2026-72794 is a high-severity vulnerability in Siyuan-note Siyuan, classified under Insufficiently Protected Credentials. CVSS score: 8.6/10. Published 2026-08-12.

How severe is CVE-2026-72794?

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

Vulnerability in Siyuan-note Siyuan

CVE-2026-72794

siyuan versions before v3.7.4 expose the session cookie signing key through the /api/system/getConf endpoint to unauthenticated users in publish mode. Attackers can retrieve the CookieKey value and forge valid session cookies to impersonat…

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-522 — Insufficiently Protected Credentials

References

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

Frequently asked questions

What is CVE-2026-72794?: CVE-2026-72794 is a high-severity vulnerability in Siyuan-note Siyuan, classified under Insufficiently Protected Credentials. CVSS score: 8.6/10. Published 2026-08-12.
How severe is CVE-2026-72794?: High severity. CVSS v3 base score is 8.6 out of 10.