{"id":"CVE-2026-65011","summary":"Graylog2 Server Missing Permission Check on Event Definition Duplicate","details":"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.","modified":"2026-07-25T08:12:08.010868Z","published":"2026-07-22T16:13:35.244Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65011.json","cna_assigner":"VulnCheck","cwe_ids":["CWE-862"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65011.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-65011"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/graylog2-server-missing-permission-check-on-event-definition-duplicate"},{"type":"REPORT","url":"https://github.com/Graylog2/graylog2-server/issues/26590"},{"type":"FIX","url":"https://github.com/Graylog2/graylog2-server/commit/46a2eeba4cdbc1408ff4cbf7b466853a8acfb38d"},{"type":"FIX","url":"https://github.com/Graylog2/graylog2-server/pull/26706"},{"type":"FIX","url":"https://github.com/Graylog2/graylog2-server/pull/26718"},{"type":"FIX","url":"https://github.com/Graylog2/graylog2-server/pull/26719"},{"type":"PACKAGE","url":"https://github.com/Graylog2/graylog2-server"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/graylog2/graylog2-server","events":[{"introduced":"0"},{"fixed":"46a2eeba4cdbc1408ff4cbf7b466853a8acfb38d"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"7.1.5"},{"last_affected":"7.0.10"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["7.2.0-alpha.1","7.1.0-rc.1","7.1.0-beta.2","7.1.0-beta.1","7.1.0-alpha.3","7.1.0-alpha.2","7.1.0-alpha.1","7.0.0-rc.1","7.0.0-beta.5","7.0.0-beta.4","7.0.0-beta.3","7.0.0-beta.2","7.0.0-beta.1","7.0.0-alpha.2","7.0.0-alpha.1","6.3.0-rc.1","6.3.0-beta.5","6.3.0-beta.4","6.3.0-beta.3","6.3.0-beta.2","6.3.0-beta.1","6.3.0-alpha.4","6.3.0-alpha.3","6.3.0-alpha.2","6.3.0-alpha.1","6.2.0-rc.1","6.2.0-beta.4","6.2.0-beta.3","6.2.0-beta.2","6.2.0-beta.1","6.2.0-alpha.2","6.2.0-alpha.1","6.1.0-rc.1","6.1.0-beta.4","6.1.0-beta.3","6.1.0-beta.2","6.1.0-beta.1","6.1.0-alpha.8","6.1.0-alpha.7","6.1.0-alpha.6","6.1.0-alpha.5","6.1.0-alpha.4","6.1.0-alpha.3","6.1.0-alpha.2","6.1.0-alpha.1","6.0.0-rc.1","6.0.0-beta.5","6.0.0-beta.4","6.0.0-beta.3","6.0.0-beta.2","6.0.0-beta.1","6.0.0-alpha.3","6.0.0-alpha.2","6.0.0-alpha.1","5.2.0-rc.1","5.2.0-beta.3","5.2.0-beta.2","5.2.0-beta.1","5.2.0-alpha.1","5.1.0-rc.1","5.1.0-beta.3","5.1.0-beta.2","5.1.0-beta.1","5.0.0-rc.1","5.0.0-beta.5","5.0.0-beta.4","5.0.0-beta.3","5.0.0-beta.2","5.0.0-beta.1","5.0.0-alpha.1","4.3.0-rc.1","4.3.0-beta.3","4.3.0-beta.2","4.3.0-beta.1","4.2.0-beta.1","4.1.0","4.1.0-rc.1","4.1.0-beta.2","4.1.0-beta.1","4.0.0-rc.1","4.0.0-beta.4","4.0.0-beta.3","4.0.0-beta.2","4.0.0-beta.1","3.3.0-rc.1","3.3.0-beta.3","3.3.0-beta.2","3.3.0-beta.1","3.2.0-rc.1","3.2.0-beta.4","3.2.0-beta.3","3.2.0-beta.2","3.2.0-beta.1","3.1.0","3.1.0-rc.2","3.1.0-rc.1","3.1.0-beta.3","3.1.0-beta.2","3.1.0-beta.1","3.0.0-beta.1","3.0.0-alpha.5","3.0.0-alpha.4","3.0.0-alpha.3","3.0.0-alpha.2","3.0.0-alpha.1","3.0.0-alpha.0","2.4.0-alpha.3","2.4.0-alpha.2","2.4.0-alpha.1","2.3.0-rc.1","2.3.0-beta.1","2.3.0-alpha.3","2.3.0-alpha.2","2.3.0-alpha.1","2.2.0","2.2.0-rc.1","2.2.0-beta.6","2.2.0-beta.5","2.2.0-beta.4","2.2.0-beta.3","2.2.0-beta.2","2.2.0-beta.1","2.2.0-alpha.4","2.2.0-alpha.3","2.2.0-alpha.2","2.2.0-alpha.1","2.1.0-rc.1","2.1.0-beta.4","2.1.0-beta.3","2.1.0-beta.2","2.1.0-beta.1","2.1.0-alpha.2","2.1.0-alpha.1","2.0.0-beta.3","2.0.0-beta.2","2.0.0-beta.1","2.0.0-alpha.5","2.0.0-alpha.4","2.0.0-alpha.3","2.0.0-alpha.2","2.0.0-alpha.1","1.2.0-rc.4","1.2.0-rc.3","1.2.0-rc.2","1.2.0-rc.1","1.1.0-rc.1","1.1.0-beta.3","1.1.0-beta.2","1.1.0-beta.1","1.0.0-beta.1","0.21.0-rc.1","0.21.0-beta4","0.21.0-beta3","0.21.0-beta2","0.21.0-beta1","v0.20.0-rc.1-1","0.20.0-rc.1-1","0.20.0-rc.1","0.20.0-preview.6","0.20.0-preview.5","0.20.0-preview.4","0.20.0-preview.3","0.20.0-preview.2","v0.20.0-preview.1","0.20.0-preview.1","0.11.0","0.10.0","0.10.0-rc.4","0.10.0-rc.3","0.10.0-rc.2","0.10.0-rc.1","0.10.0-preview.2","0.9.7-preview.1","0.9.6","0.9.6-beta","0.9.6-PREVIEW.3","0.9.6-PREVIEW.2","0.9.6-PREVIEW","0.9.5p1","0.9.5","0.9.4p1","0.9.4","0.9.3","0.9.2","0.9.1","0.9"],"database_specific":{"vanir_signatures":[{"deprecated":false,"digest":{"threshold":0.9,"line_hashes":["331882978985711541703431588521155920855","308715086877885667520083820391431740643","218002238660803148795144892404690327398","276760877474670685297722458616081481746","189118893253210806561532765687876298607","50242246623298352571881756420480596802","43040393256806305892197299991244658072","260410764086227323183286213100855756057","235197985259979043358532087585524660985","244358268893385373276872281836209594759","105397549247647683732291513954164406047","238555453909553065774606348002991004998","148797922081059456472888020993111698338"]},"id":"CVE-2026-65011-0f582338","signature_type":"Line","signature_version":"v1","source":"https://github.com/graylog2/graylog2-server/commit/46a2eeba4cdbc1408ff4cb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