CVE Catalog

CVE-2026-65011

MediumCVSS 4.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.38%

31th percentile - higher than 31% of all known CVEs

Summary

Graylog2 Server before commit 46a2eeb lacks per-entity permission checks in the POST /events/definitions/{definitionId}/duplicate endpoint. Authenticated users with low privileges can clone any event definition, reading private detection queries, aggregation thresholds, schedules, and notification bindings.

Risk Assessment

Attackers can access sensitive detection rules and alert configurations, potentially revealing information about the monitored infrastructure.

Recommendation

Update Graylog2 Server to a version containing commit 46a2eeb or later, which adds proper permission checks.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS