TI-2026-56990 Aliases CVE-2026-82652 GHSA-q9wp-phq7-jv7c

SiYuan before v3.8.1 Information Disclosure via Publish Access

LOW 36CWE-668Published 2026-08-30 · Updated 2026-08-31

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-668 and the CVSS impact.

Summary

SiYuan before v3.8.1 fails to filter invisible-tier content from SQL embed blocks, attribute-view keys, and attribute-view backlinks in publish mode. Anonymous readers can enumerate invisible content through these three listing mechanisms despite admin configuration marking content unlisted.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00343 27th percentileScored 2026-11-07

Fix Fixed siyuan (siyuan-note): 3.8.1

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 3.8.1	3.8.1	Patch available	CNA

siyuan Vendorsiyuan-note Affected before 3.8.1 Fixed in 3.8.1 Patch available CNA

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 3.8.1

Fixed in the same release

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

Release · 2026-08-30
siyuan-note siyuan 3.8.1
6 records Highest priority Priority HIGH 2 HIGH, 1 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2026-56991 SiYuan before v3.8.1 Stored XSS via confirmDialogPriority HIGH 75
- TI-2026-56987 SiYuan before 3.8.1 Local Privilege Escalation via Uncontrolled Search PathPriority HIGH 72
- TI-2026-56992 SiYuan before v3.8.1 Stored XSS via block namePriority MEDIUM 42
Show all 6 records →

Timeline

2026-10-02 Threatist record created from CVE-2026-82652
2026-10-03 Alias added: GHSA-q9wp-phq7-jv7c

References

Advisory 1

GitHub Security Advisory (GHSA-2pgf-jv7c-q7rx)

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