SiYuan before v3.8.4 Path Traversal via setNotebookIcon
SiYuan versions before v3.8.4 contain a path traversal vulnerability in the setNotebookIcon endpoint that allows authenticated administrators to create arbitrary directory trees and write files outside the workspace boundary. Attackers can supply directory traversal sequences in the notebook parameter to escape the workspace data directory and write conf.json files to arbitrary locations accessible by the kernel process.
CVE-2026-100638
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-100638
siyuan
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "siyuan-note",
"product": "siyuan",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "3.8.4",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "3.8.4",
"versionType": "semver"
}
],
"packageURL": "pkg:golang/github.com/siyuan-note/siyuan",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-100638
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #4202 · Revision 1
- Added to Heist Feed
- Publisher date