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.
Metrics
Affected Vendors & Products
References
| Link | Providers |
|---|---|
| https://github.com/MISP/MISP/commit/f36634e57 |
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History
Mon, 21 Sep 2026 16:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Misp
Misp misp |
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| Vendors & Products |
Misp
Misp misp |
Mon, 21 Sep 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Mon, 21 Sep 2026 13:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | MISP ObjectReferencesController: Granular Distribution and Sharing Group Restrictions Bypassed When Adding Object References | |
| Weaknesses | CWE-862 | |
| References |
| |
| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: CIRCL
Published: 2026-09-21T13:25:40.360Z
Updated: 2026-09-21T14:48:16.963Z
Reserved: 2026-09-21T13:25:38.483Z
Link: CVE-2026-94394
Updated: 2026-09-21T14:40:06.055Z
Status : Deferred
Published: 2026-09-21T14:17:30.717
Modified: 2026-09-21T15:17:39.643
Link: CVE-2026-94394
No data.