TI-2026-51689 Aliases CVE-2026-73605 GHSA-hf8h-97gm-4x2p

SiYuan before v3.7.4 Path Traversal via getUniqueFilename

LOW 36CWE-862Published 2026-08-13 · Updated 2026-08-14

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Security bypass
Confidentiality · integrity · availability: Low · None · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-862.

Summary

SiYuan versions before v3.7.4 contain a path traversal vulnerability in the getUniqueFilename endpoint that allows anonymous readers to probe filesystem existence without validation or confinement. Attackers can supply arbitrary absolute paths to determine whether files and directories exist on the host, enabling reconnaissance of the filesystem layout and installed software.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00325 25th percentileScored 2026-11-07

Fix Fixed siyuan (siyuan-note): 3.7.4github.com/siyuan-note/siyuan/kernel (Go): 0.0.0-20260812083335-251596fc0de2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
siyuan-note	siyuan	before 3.7.4	3.7.4	Patch available	CNA
—	github.com/siyuan-note/siyuan/kernel (Go)	before 0.0.0-20260812083335-251596fc0de2	0.0.0-20260812083335-251596fc0de2	Patch available	GHSA-hf8h-97gm-4x2p

siyuan Vendorsiyuan-note Affected before 3.7.4 Fixed in 3.7.4 Patch available CNA
github.com/siyuan-note/siyuan/kernel (Go) Vendor— Affected before 0.0.0-20260812083335-251596fc0de2 Fixed in 0.0.0-20260812083335-251596fc0de2 Patch available GHSA-hf8h-97gm-4x2p

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:b3log:siyuan::::::::	—	—	siyuan-note

cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:* Versions — — ·siyuan-note

Remediation

Fix · CNA siyuan (siyuan-note) Fixed in 3.7.4
Fix · GHSA-hf8h-97gm-4x2p github.com/siyuan-note/siyuan/kernel (Go) Fixed in 0.0.0-20260812083335-251596fc0de2 Advisory →

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-08-13
siyuan-note siyuan 3.7.4
5 records Highest priority Priority HIGH 2 HIGH, 1 MEDIUM, 2 LOW
Other records, highest priority first
- TI-2026-51691 SiYuan before v3.7.4 Information Disclosure via getOutlineStoragePriority HIGH 70
- TI-2026-51690 SiYuan before v3.7.4 Information Disclosure via getRefIDsPriority HIGH 70
- TI-2026-51694 SiYuan before v3.7.4 Information Disclosure via Local StoragePriority MEDIUM 64
Show all 5 records →

Timeline

2026-10-02 Threatist record created from CVE-2026-73605
2026-10-03 Alias added: GHSA-hf8h-97gm-4x2p

References

Advisory 2

Other 1

https://github.com/siyuan-note/siyuan

TI-2026-48492 SiYuan before v3.7.3 SQL Injection via searchDocs CVSS 4.0CRITICAL 9.9
TI-2026-48491 SiYuan before v3.7.3 SQL Injection via searchEmbedBlock CVSS 4.0CRITICAL 9.9
TI-2026-48490 SiYuan before v3.7.3 SQL Injection via fullTextSearchAssetContent CVSS 4.0CRITICAL 9.9
TI-2026-47010 SiYuan before v3.7.2 Unauthenticated Administrator Takeover via MCP CVSS 4.0CRITICAL 10.0
TI-2026-26050 SiYuan has directory traversal within its publishing service CVSS 3.1CRITICAL 9.8
TI-2026-25256 SiYuan: Authorization Bypass Allows Arbitrary SQL Execution via Search API CVSS 3.1CRITICAL 9.8

See all 242 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences