{"id":"CVE-2026-101587","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-101587","generatedAt":"2026-10-27T23:45:01.374Z","title":"Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-webclient-http1).","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).","published":"2026-10-20T22:18:12.000Z","lastModified":"2026-10-22T19:17:35.000Z","status":"Deferred","sourceIdentifier":"secalert_us@oracle.com","cvss":{"version":"3.1","score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},"cwe":["CWE-400"],"affected":[],"epss":{"score":0.00429,"percentile":0.36865,"date":"2026-10-26","history":[{"date":"2026-10-21","score":0.00385,"percentile":0.31316}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.43%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-20T22:18:12.000Z","detail":{"score":"5.3","severity":"MEDIUM","publishedAt":"2026-10-20T22:18:12.150Z"},"summary":"New CVE, medium severity (CVSS 5.3)."}],"references":[{"url":"https://www.oracle.com/security-alerts/cpuoct2026.html","source":"secalert_us@oracle.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-101587","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}