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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact None

Subsequent System Availability Impact Low

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact None

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation poc

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
siyuan-note siyuan unaffected
Version Status Constraints
0 affected < 3.7.4
3.7.4 unaffected —

No data.

No data.

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No data.

Project Subscriptions

Vendors Products
B3log Subscribe
Siyuan Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

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

Mon, 17 Aug 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 17 Aug 2026 11:15:00 +0000

Type Values Removed Values Added
Description 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.
Title SiYuan before 3.7.4 Unauthenticated Debug Endpoint Information Disclosure
First Time appeared B3log
B3log siyuan
Weaknesses CWE-215
CPEs cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:*
Vendors & Products B3log
B3log siyuan
References
Metrics cvssV3_1

{'score': 9.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L'}

cvssV4_0

{'score': 9.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:L/SC:H/SI:N/SA:L'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-08-17T14:53:27.144Z

Reserved: 2026-08-16T12:59:42.223Z

Link: CVE-2026-74799

cve-icon Vulnrichment

Updated: 2026-08-17T14:50:53.301Z

cve-icon NVD

Status : Received

Published: 2026-08-17T11:16:40.017

Modified: 2026-08-17T15:16:58.120

Link: CVE-2026-74799

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-17T12:45:03Z

Weaknesses