What is CVE-2026-69083?

CVE-2026-69083 is a critical-severity vulnerability in Siyuan-Note Siyuan, classified under SQL Injection. CVSS score: 10.0/10. Published 2026-08-03.

How severe is CVE-2026-69083?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Is CVE-2026-69083 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

SQL Injection in Siyuan-Note Siyuan

CVE-2026-69083

SiYuan versions before v3.7.3 contain SQL injection vulnerabilities in the fullTextSearchAssetContent endpoint reachable by unauthenticated users and publish RoleReader tokens. Attackers can execute arbitrary SQL on the read-write asset-content database via unescaped method parameters and REGEXP clauses to read, modify, or delete cross-notebook data.

Vulnerability class: SQL Injection

EPSS: 0.004 (28.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N.

Affected products

Siyuan-note Siyuan — versions 0, 3.7.3

Weakness classification (CWE)

CWE-89 — SQL Injection

Public proof-of-concept exploits

0xdak/CVE-2026-69083_exploit

References

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

Frequently asked questions

What is CVE-2026-69083?: CVE-2026-69083 is a critical-severity vulnerability in Siyuan-Note Siyuan, classified under SQL Injection. CVSS score: 10.0/10. Published 2026-08-03.
How severe is CVE-2026-69083?: Critical severity. CVSS v3 base score is 10.0 out of 10.
Is CVE-2026-69083 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.