CVE-2026-74799

CRITICAL 9.3

SiYuan before 3.7.4 Unauthenticated Debug Endpoint Information Disclosure

CVSS Score

9.3

EPSS Score

0.0%

EPSS Percentile

0th

SiYuan before 3.7.4 registers Go net/http/pprof debug endpoints including heap and goroutine dumps without authentication when --mode flag is not set to exactly prod. Attackers can access /debug/pprof/heap and related endpoints to extract in-memory secrets including AccessAuthCode and AI provider API keys.

CWE	CWE-215
Vendor	siyuan-note
Product	siyuan
Published	Aug 17, 2026

Stay Ahead of the Next One

Get instant alerts for siyuan-note siyuan

Be the first to know when new critical vulnerabilities affecting siyuan-note siyuan are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

None

Availability

Low

Affected Versions

siyuan-note / siyuan

0 < 3.7.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/siyuan-note/siyuan/security/advisories/GHSA-9cqq-p2hw-mj3f vulncheck.com: https://www.vulncheck.com/advisories/siyuan-before-unauthenticated-debug-endpoint-information-disclosure

Credits

🔍 alham-rizvi