SiYuan: Broken access control in SiYuan publish-mode Readers can enumerate metadata
Priority MEDIUM 53CWE-863Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-863.
Summary
SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, broken access control in the searchAsset, searchTag, searchWidget, and searchTemplate publish-mode Readers can enumerate metadata from documents that are invisible to the publish service. This vulnerability is fixed in 3.7.0.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00221 12th percentileScored 2026-11-07
Fix Fixed siyuan (siyuan-note): 3.7.0github.com/siyuan-note/siyuan/kernel (Go): 0.0.0-20260512140701-d7b77d945e0d
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- 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 3.7.0 | 3.7.0 | Patch available | CNA |
| — | github.com/siyuan-note/siyuan/kernel (Go) | before 0.0.0-20260512140701-d7b77d945e0d | 0.0.0-20260512140701-d7b77d945e0d | Patch available | GHSA-fmh9-gpqh-g53g |
- siyuan Vendorsiyuan-note Affected before 3.7.0 Fixed in 3.7.0 Patch available CNA
- github.com/siyuan-note/siyuan/kernel (Go) Vendor— Affected before 0.0.0-20260512140701-d7b77d945e0d Fixed in 0.0.0-20260512140701-d7b77d945e0d Patch available GHSA-fmh9-gpqh-g53g
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 3.7.0
- Fix · GHSA-fmh9-gpqh-g53g github.com/siyuan-note/siyuan/kernel (Go) Fixed in 0.0.0-20260512140701-d7b77d945e0d Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-45148
- 2026-10-03 Alias added: GHSA-fmh9-gpqh-g53g
References
More siyuan-note vulnerabilities
- 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
Sources
- CVE-2026-45148 · CVE Program
- CVE-2026-45148 · NVD
- FIRST EPSS
- GHSA-fmh9-gpqh-g53g · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences