CVE-2026-65011
Medium
Description
Graylog2 Server before commit 46a2eeb contains a missing per-entity permission check in the POST /events/definitions/{definitionId}/duplicate endpoint that allows authenticated users to clone any event definition. Attackers with the low-privilege eventdefinitions:create capability can read private event definitions including detection queries, aggregation thresholds, grouping fields, schedules, and notification bindings by duplicating them.
SeverityMedium
CVSS4.3
Exploit probability—
ProductGraylog2-server
PublishedJul 22, 2026
First seenJul 22, 2026
Weakness typeCWE-862Missing authorization
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Graylog2 graylog2-server | v ≤ 7.1.5, v ≤ 7.0.10 | — |
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