{"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","product":"helidon","affected":["helidon >= 3.0.0, < 3.2.20"],"patched":["helidon 3.2.20"],"published":"2026-09-15","updated":"2026-09-28","sourceUpdated":"2026-09-28T15:20:44.270","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"],"epss":0.00411,"epssPercentile":0.35173,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-15T23:08:27.430371Z"},"ingestedAt":"2026-09-15T20:44:02.551Z","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## Affected\n\n- `helidon >= 3.0.0, < 3.2.20`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `helidon 3.2.20`","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}