CVE-2026-38587 — MEDIUM (4.3)

Vulnerability 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.

CVSS Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

NONE

Availability

NONE

Related Weaknesses (CWE)

CWE-639

References

https://github.com/ONLYOFFICE/DocSpace/blob/master/CHANGELOG.md#security

FAQ

What is CVE-2026-38587?

CVE-2026-38587 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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-le...

How severe is CVE-2026-38587?

CVE-2026-38587 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-38587?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.