CVE-2026-94394 Details
Description
When a regular user adds a reference between objects or attributes, MISP checks whether the user can access the overall event, but it does not always check whether the individual pieces of data are also allowed for that user. Because of this, someone who can view an event could potentially access attributes or objects inside that event that were meant to be restricted to a specific sharing group or distribution level. The vulnerability affects authenticated users who are not site administrators and who already have access to an event containing more restricted data. The main impact is that users may be able to view sensitive attribute values, object details, or related object data that they should not normally be allowed to see.
A vulnerability exists in MISP that allows authenticated users, who are not site administrators, to access restricted data within events they can view. While the system checks event access permissions, it fails to adequately verify permissions for individual attributes or objects. As a result, users may inadvertently see sensitive information that should be limited to specific sharing groups or distribution levels. This issue primarily affects users who already have access to an event containing more restricted data.
Users can update to MISP version 2.5.47, which includes a patch for this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 21, 2026CISA-ADP
Assessed Sep 21, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/MISP/MISP/commit/f36634e57 | CIRCL | Source CodeVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-862 | Missing Authorization | CIRCL |
Affected Products
| Product | Versions |
|---|---|
| MISP | All versions |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 21, 2026 | CVE Modified | CISA-ADP |
| Sep 21, 2026 | New CVE Received | CIRCL |