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HIGH

CVE-2026-93591

CVSS v3

7.6

HIGH

EPSS Score

0.3 %

exploit probability, as of 2026-09-28

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

SiYuan versions before 3.8.3 contain an SQL injection vulnerability in the graph.go query2Stmt function where tag values are concatenated raw into SQL string literals without escaping single quotes. A publish-mode reader or anonymous visitor can inject SQL via inline HTML span tags in the getGraph endpoint to execute arbitrary queries on the read-write database and exfiltrate private data across notebooks.

Technical details

Published
2026-09-18
Last Modified
2026-09-18

Frequently asked questions

What is CVE-2026-93591?

SiYuan versions before 3.8.3 contain an SQL injection vulnerability in the graph.go query2Stmt function where tag values are concatenated raw into SQL string literals without escaping single quotes. A publish-mode reader or anonymous visitor can inject SQL via inline HTML span tags in the getGraph endpoint to execute arbitrary queries on the read-write database and exfiltrate private data across notebooks.

Is CVE-2026-93591 actively exploited?

Active exploitation of CVE-2026-93591 has not been confirmed. Its EPSS score was 0.3% on 2026-09-28, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-93591?

CVE-2026-93591 has a CVSS v3 base score of 7.6 (HIGH severity).

Is CVE-2026-93591 affecting your environment?

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