{"api_version":"1","generated_at":"2026-10-21T10:16:45+00:00","cve":"CVE-2026-101581","urls":{"html":"https://cve.report/CVE-2026-101581","api":"https://cve.report/api/cve/CVE-2026-101581.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-101581","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-101581"},"summary":{"title":"CVE-2026-101581","description":"Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-webclient-dns-resolver-round-robin).  Supported versions that are affected are 4.0.0-4.5.5 and 27.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via DNS to compromise Helidon.  Successful attacks of this vulnerability can result in  unauthorized update, insert or delete access to some of Helidon accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Helidon. CVSS 3.1 Base Score 6.5 (Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L).","state":"PUBLISHED","assigner":"oracle","published_at":"2026-10-20 22:18:11","updated_at":"2026-10-20 22:18:11"},"problem_types":["Easily exploitable vulnerability allows unauthenticated attacker with network access via DNS to compromise Helidon.  Successful attacks of this vulnerability can result in  unauthorized update, insert or delete access to some of Helidon accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Helidon."],"metrics":[{"version":"3.1","source":"secalert_us@oracle.com","type":"Primary","score":"6.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"LOW"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"6.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","version":"3.1"}}],"references":[{"url":"https://www.oracle.com/security-alerts/cpuoct2026.html","name":"https://www.oracle.com/security-alerts/cpuoct2026.html","refsource":"secalert_us@oracle.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-101581","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-101581","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Oracle Corporation","product":"Helidon","version":"affected 4.0.0 4.5.5 custom","platforms":[]},{"source":"CNA","vendor":"Oracle Corporation","product":"Helidon","version":"affected 27.0.0 semver","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"product":"Helidon","vendor":"Oracle Corporation","versions":[{"lessThanOrEqual":"4.5.5","status":"affected","version":"4.0.0","versionType":"custom"},{"status":"affected","version":"27.0.0","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:oracle:helidon:*:*:*:*:*:*:*:*","versionEndIncluding":"4.5.5","versionStartIncluding":"4.0.0","vulnerable":true},{"criteria":"cpe:2.3:a:oracle:helidon:27.0.0:*:*:*:*:*:*:*","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en-US","value":"Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-webclient-dns-resolver-round-robin).  Supported versions that are affected are 4.0.0-4.5.5 and 27.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via DNS to compromise Helidon.  Successful attacks of this vulnerability can result in  unauthorized update, insert or delete access to some of Helidon accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Helidon. CVSS 3.1 Base Score 6.5 (Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L)."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"description":"Easily exploitable vulnerability allows unauthenticated attacker with network access via DNS to compromise Helidon.  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Successful attacks of this vulnerability can result in  unauthorized update, insert or delete access to some of Helidon accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Helidon."],"metrics":{"cvssMetricV31":[{"source":"secalert_us@oracle.com","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"LOW"},"exploitabilityScore":3.9,"impactScore":2.5}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"101581","Ordinal":"1","Title":"CVE-2026-101581","CVE":"CVE-2026-101581","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"101581","Ordinal":"1","NoteData":"Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-webclient-dns-resolver-round-robin).  Supported versions that are affected are 4.0.0-4.5.5 and 27.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via DNS to compromise Helidon.  Successful attacks of this vulnerability can result in  unauthorized update, insert or delete access to some of Helidon accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Helidon. CVSS 3.1 Base Score 6.5 (Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L).","Type":"Description","Title":"CVE-2026-101581"}]}}}