In MISP, the Overmind event view enriches an event with its most recent attached report for preview purposes. The enrichment logic fetched the report using only the event ID as the lookup condition, without applying the report's own distribution/ACL constraints. Because MISP reports carry an independent distribution setting that can be more restrictive than the parent event's distribution, an authenticated user who had read access to the event could retrieve and view a report whose distribution explicitly excluded that user. Additionally, the query did not filter out soft-deleted reports, allowing retrieval of reports that had been administratively removed.
The result is an unauthorized disclosure of threat-intelligence report content to users who should not have access under the report's own access-control policy.
The vulnerability requires an authenticated MISP user with at least read access to the affected event.
Metrics
Affected Vendors & Products
References
| Link | Providers |
|---|---|
| https://github.com/MISP/MISP/commit/6932aace8 |
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History
Thu, 24 Sep 2026 04:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Tue, 22 Sep 2026 16:15:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Misp
Misp misp |
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| Vendors & Products |
Misp
Misp misp |
Tue, 22 Sep 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In MISP, the Overmind event view enriches an event with its most recent attached report for preview purposes. The enrichment logic fetched the report using only the event ID as the lookup condition, without applying the report's own distribution/ACL constraints. Because MISP reports carry an independent distribution setting that can be more restrictive than the parent event's distribution, an authenticated user who had read access to the event could retrieve and view a report whose distribution explicitly excluded that user. Additionally, the query did not filter out soft-deleted reports, allowing retrieval of reports that had been administratively removed. The result is an unauthorized disclosure of threat-intelligence report content to users who should not have access under the report's own access-control policy. The vulnerability requires an authenticated MISP user with at least read access to the affected event. | |
| Title | MISP Overmind Event View Discloses Report Content Bypassing Report-Level ACL | |
| Weaknesses | CWE-639 CWE-862 |
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| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: CIRCL
Published: 2026-09-22T14:06:59.969Z
Updated: 2026-09-22T15:28:07.198Z
Reserved: 2026-09-22T14:06:57.011Z
Link: CVE-2026-95683
Updated: 2026-09-22T15:28:02.309Z
Status : Deferred
Published: 2026-09-22T15:17:26.040
Modified: 2026-09-22T16:18:22.837
Link: CVE-2026-95683
No data.