{"id":"CVE-2026-101587","state":"PUBLISHED","title":"Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-webclient-http1).  Supported versions that are affected are 4.0.0-4.5.5 and 27.0.0. Easily expl","description":"Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-webclient-http1).  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 HTTP to compromise Helidon.  Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Helidon. CVSS 3.1 Base Score 5.3 (Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).","publishedAt":"2026-10-20T21:21:43.609Z","updatedAt":"2026-10-22T18:50:24.185Z","severity":{"score":5.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","source":"oracle"},"assigner":"oracle","products":["Oracle Corporation Helidon"],"affected":[{"vendor":"Oracle Corporation","product":"Helidon","versions":[{"version":"4.0.0","status":"affected","lessThanOrEqual":"4.5.5","versionType":"custom"},{"version":"27.0.0","status":"affected","versionType":"semver"}]}],"references":["https://www.oracle.com/security-alerts/cpuoct2026.html"],"weaknesses":["CWE-400"],"ingestedAt":"2026-10-29T20:10:13.529Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/101xxx/CVE-2026-101587.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-101587","state":"PUBLISHED","datePublished":"2026-10-20T21:21:43.609Z","dateUpdated":"2026-10-22T18:50:24.185Z","assignerShortName":"oracle","assignerOrgId":"43595867-4340-4103-b7a2-9a5208d29a85","dateReserved":"2026-09-28T15:40:09.493Z"},"containers":{"cna":{"descriptions":[{"lang":"en-US","value":"Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-webclient-http1).  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 HTTP to compromise Helidon.  Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Helidon. CVSS 3.1 Base Score 5.3 (Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)."}],"affected":[{"vendor":"Oracle Corporation","product":"Helidon","versions":[{"version":"4.0.0","status":"affected","lessThanOrEqual":"4.5.5","versionType":"custom"},{"version":"27.0.0","status":"affected","versionType":"semver"}]}],"references":[{"url":"https://www.oracle.com/security-alerts/cpuoct2026.html","name":"Oracle Advisory","tags":["vendor-advisory"]}],"metrics":[{"cvssV3_1":{"attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW","version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","baseScore":5.3,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"lang":"en-US","description":"Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon.  Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Helidon."}]}],"providerMetadata":{"shortName":"oracle","orgId":"43595867-4340-4103-b7a2-9a5208d29a85","dateUpdated":"2026-10-20T21:21:43.609Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:oracle:helidon:*:*:*:*:*:*:*:*","versionStartIncluding":"4.0.0","versionEndIncluding":"4.5.5"},{"vulnerable":true,"criteria":"cpe:2.3:a:oracle:helidon:27.0.0:*:*:*:*:*:*:*"}]}]}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-101587","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-10-22T18:43:26.479332Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-400","lang":"en","type":"CWE","description":"CWE-400 Uncontrolled Resource Consumption"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-22T18:50:24.185Z"}}]}}}