{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-65011", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-07-21T11:32:54.897Z", "datePublished": "2026-07-22T16:13:35.244Z", "dateUpdated": "2026-07-24T21:35:12.085Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-07-24T21:35:12.085Z" }, "title": "Graylog2 Server Missing Permission Check on Event Definition Duplicate", "descriptions": [ { "lang": "en", "value": "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." } ], "tags": [ "x_open-source" ], "datePublic": "2026-07-06T00:00:00.000Z", "problemTypes": [ { "descriptions": [ { "lang": "en", "cweId": "CWE-862", "description": "Missing Authorization", "type": "CWE" } ] } ], "affected": [ { "vendor": "Graylog2", "product": "graylog2-server", "defaultStatus": "unaffected", "packageURL": "pkg:maven/org.graylog/graylog-parent", "versions": [ { "version": "0", "status": "affected", "versionType": "semver", "lessThanOrEqual": "7.1.5" }, { "status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "7.0.10" }, { "status": "unaffected", "version": "46a2eeba4cdbc1408ff4cbf7b466853a8acfb38d", "versionType": "git" } ], "repo": "https://github.com/Graylog2/graylog2-server" } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV4_0": { "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "MEDIUM", "baseScore": 5.3, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N" } }, { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV3_1": { "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE", "version": "3.1", "baseSeverity": "MEDIUM", "baseScore": 4.3, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N" } } ], "references": [ { "url": "https://github.com/Graylog2/graylog2-server/issues/26590", "name": "Researcher Disclosure", "tags": [ "issue-tracking", "technical-description" ] }, { "url": "https://github.com/Graylog2/graylog2-server/pull/26706", "name": "Pull Request", "tags": [ "issue-tracking", "patch" ] }, { "url": "https://github.com/Graylog2/graylog2-server/commit/46a2eeba4cdbc1408ff4cbf7b466853a8acfb38d", "name": "Patch Commit", "tags": [ "patch" ] }, { "url": "https://github.com/Graylog2/graylog2-server/pull/26718", "name": "7.0 Backport Fix", "tags": [ "issue-tracking", "patch" ] }, { "url": "https://github.com/Graylog2/graylog2-server/pull/26719", "name": "7.1 Backport Fix", "tags": [ "issue-tracking", "patch" ] }, { "url": "https://www.vulncheck.com/advisories/graylog2-server-missing-permission-check-on-event-definition-duplicate", "tags": [ "third-party-advisory" ] } ], "credits": [ { "lang": "en", "value": "George Chen", "type": "finder" } ], "x_generator": { "engine": "vulncheck-endgame" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-07-22T18:23:04.454830Z", "id": "CVE-2026-65011", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-22T18:24:04.887Z" } } ] } }