CVE-2026-110385
A remote code execution vulnerability in ONLYOFFICE Document Server versions before10.0.0 allows an authenticated attacker with a valid Inbox-compatible JWT to execute arbitrary operating system commands as the ds service account. The Document Builder API improperly processes user-controlled converter XML supplied through the optional third argument of builder.SaveFile(). By injecting a duplicate m_sFileTo element, an attacker can override the server-generated output path and write arbitrary content outside the designated job directory. This allows the attacker to overwrite the runtime.json configuration file, modify the Document Builder executable path and arguments, and execute arbitrary commands when a subsequent Document Builder job is processed.
CVE-2026-110385
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-2026-110385
Document Server
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.
[
{
"repo": "https://github.com/ONLYOFFICE/DocumentServer",
"vendor": "ONLYOFFICE",
"modules": [
"Document Builder (DocBuilder)",
"FileConverter"
],
"product": "Document Server",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "10.0",
"versionType": "custom"
}
],
"platforms": [
"Linux"
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-110385
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #22841 · Revision 1
- Added to Heist Feed
- Publisher date