Description
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.
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Remediation
Vendor Solution
Update ONLYOFFICE Document Server to v.10 or newer
Tracking
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Advisories
No advisories yet.
References
History
Wed, 14 Oct 2026 00:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| First Time appeared |
Onlyoffice
Onlyoffice document Server |
|
| Weaknesses | CWE-73 | |
| CPEs | cpe:2.3:a:onlyoffice:document_server:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Onlyoffice
Onlyoffice document Server |
|
| References |
| |
| Metrics |
cvssV4_0
|
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2026-10-14T00:24:53.582Z
Reserved: 2026-10-14T00:24:52.796Z
Link: CVE-2026-110385
No data.
Status : Received
Published: 2026-10-14T01:17:06.337
Modified: 2026-10-14T01:17:06.337
Link: CVE-2026-110385
No data.
OpenCVE Enrichment
No data.
Weaknesses
