{"id":"CVE-2026-83459","title":"Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-media-multipart)","summary":"Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-media-multipart).  Supported versions that are affected are 3.0.0-3.2.20. Easily exploitable vulnerability allows unauthenticated attacker with network …","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","cwe":["CWE-400"],"vendor":"Oracle Corporation","product":"Helidon","affected":["Helidon >= 3.0.0 <= 3.2.20"],"published":"2026-09-15","updated":"2026-09-16","sourceUpdated":"2026-09-16T19:42:12.090","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-83459","references":[{"url":"https://www.oracle.com/security-alerts/cspusep2026.html","label":"secalert_us@oracle.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-15T23:08:27.430371Z"},"ingestedAt":"2026-09-15T20:44:02.551Z","epss":0.00402,"epssPercentile":0.34165,"slug":"CVE-2026-83459","body":"## Overview\n\nVulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-media-multipart).  Supported versions that are affected are 3.0.0-3.2.20. 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).\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}