SiYuan before v3.8.4 Clipboard Data Disclosure via IPC
SiYuan before v3.8.4 contains an authorization omission in the siyuan-get IPC handler that allows remote-kernel renderers to access native clipboard formats by invoking clipboardReadMathML, clipboardReadOffice, and clipboardReadWPS commands with matching plaintext. Attackers controlling remote renderer content can obtain MathML formulas, Office bytes, and WPS bytes from local clipboard during user-mediated paste operations.
CVE-2026-100640
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-2026-100640
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/kernel",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-100640
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #12669 · Revision 1
- Added to Heist Feed
- Publisher date