{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-56151","assignerOrgId":"271b6943-45a9-4f3a-ab4e-976f3fa05b5a","state":"PUBLISHED","assignerShortName":"elastic","dateReserved":"2026-06-19T11:01:02.535Z","datePublished":"2026-07-01T16:29:25.165Z","dateUpdated":"2026-07-01T17:25:08.241Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Kibana","vendor":"Elastic","versions":[{"lessThanOrEqual":"9.3.5","status":"affected","version":"9.0.0","versionType":"semver"},{"lessThanOrEqual":"8.19.16","status":"affected","version":"8.0.0","versionType":"semver"},{"lessThanOrEqual":"9.4.2","status":"affected","version":"9.4.0","versionType":"semver"}]}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>Improper Input Validation (CWE-20) in Kibana can lead to a denial of service via Input Data Manipulation (CAPEC-153). An authenticated user can submit a specially crafted Fleet policy input that is not correctly validated, which can render Fleet agent, server, and policy management functionality unavailable.</p>"}],"value":"Improper Input Validation (CWE-20) in Kibana can lead to a denial of service via Input Data Manipulation (CAPEC-153). An authenticated user can submit a specially crafted Fleet policy input that is not correctly validated, which can render Fleet agent, server, and policy management functionality unavailable."}],"impacts":[{"capecId":"CAPEC-153","descriptions":[{"lang":"en","value":"CAPEC-153 Input Data Manipulation"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseSeverity":"MEDIUM","baseScore":6.5,"confidentialityImpact":"NONE","integrityImpact":"NONE","scope":"UNCHANGED","userInteraction":"NONE","privilegesRequired":"LOW","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","description":"CWE-20 Improper Input Validation","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"271b6943-45a9-4f3a-ab4e-976f3fa05b5a","shortName":"elastic","dateUpdated":"2026-07-01T16:29:25.165Z"},"references":[{"url":"https://discuss.elastic.co/t/kibana-8-19-17-9-3-6-9-4-3-security-update-esa-2026-45"}],"source":{"discovery":"Elastic"},"title":"Improper Input Validation in Kibana Leading to Denial of Service","x_generator":{"engine":"Elastic CVE Publisher 0.0.1"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-56151","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-07-01T17:19:03.394968Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-07-01T17:25:08.241Z"}}]}}