CVE-2026-109309
SiYuan v3.7.0 before v3.8.6 Arbitrary File Read via Plugin ResponseFile.Path
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
SiYuan v3.7.0 before v3.8.6 contains an absolute path traversal vulnerability in the kernel's private plugin HTTP server, which passes a kernel plugin handler's ResponseFile.Path to gin's Context.File without validation. Attackers supplying a malicious kernel plugin can return an absolute path to read any file readable by the SiYuan process, including the API token and conf.json.
| CWE | CWE-22 |
| Vendor | siyuan-note |
| Product | siyuan |
| Published | Oct 12, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
siyuan-note / siyuan
3.7.0 < 3.8.6
References
github.com: https://github.com/siyuan-note/siyuan/security/advisories/GHSA-phmw-4rgv-r4xv github.com: https://github.com/siyuan-note/siyuan/commit/c6494375ea40ee973f430f0e85d50f1862a30d81 vulncheck.com: https://www.vulncheck.com/advisories/siyuan-3.7.0-before-3.8.6-arbitrary-file-read-via-plugin-responsefile-path
Credits
🔍 CyberSunil