CVE-2026-38587

Published May 26, 2026 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
An Insecure Direct Object Reference (IDOR) vulnerability was discovered in ONLYOFFICE DocSpace before 3.2.1. The flaw exists in multiple REST API endpoints. This allows authenticated users with low-level permissions (User or Guest) to retrieve sensitive information, such as the Owner's unique identifier (ID) and profile information, which should only be accessible to administrators.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Onlyoffice
Onlyoffice docspace
Vendors & Products Onlyoffice
Onlyoffice docspace
Type Values Removed Values Added
Title Insecure Direct Object Reference in ONLYOFFICE DocSpace REST API Enables Sensitive Data Exposure for Low-Permission Users
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Insecure Direct Object Reference in ONLYOFFICE DocSpace REST API Enables Sensitive Data Exposure for Low-Permission Users
Weaknesses CWE-639
Type Values Removed Values Added
Description An Insecure Direct Object Reference (IDOR) vulnerability was discovered in ONLYOFFICE DocSpace before 3.2.1. The flaw exists in multiple REST API endpoints. This allows authenticated users with low-level permissions (User or Guest) to retrieve sensitive information, such as the Owner's unique identifier (ID) and profile information, which should only be accessible to administrators.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
May 26, 2026, 8:07 PM
Reserved
Apr 6, 2026, 12:00 AM
Status
Deferred
Published
May 26, 2026, 4:16 PM
Modified
Jul 24, 2026, 11:10 AM