{"id":"CVE-2026-101590","published":"2026-10-20T22:18:12.490","lastModified":"2026-10-22T23:17:59.063","description":"Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-microprofile-security).  Supported versions that are affected are 4.0.0-4.5.5. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon.  Successful attacks of this vulnerability can result in  unauthorized creation, deletion or modification access to critical data or all Helidon accessible data as well as  unauthorized access to critical data or complete access to all Helidon accessible data. CVSS 3.1 Base Score 9.1 (Confidentiality and Integrity impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).","cvssScore":9.1,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","cwes":["CWE-287","CWE-306"],"vendors":[],"products":[],"references":[{"url":"https://www.oracle.com/security-alerts/cpuoct2026.html","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"The Helidon microprofile-security component (versions 4.0.0–4.5.5) lacks proper authentication enforcement, allowing unauthenticated attackers to bypass security controls and gain unauthorized read/write access to critical data via HTTP.","exploitability":"Easily exploitable by any unauthenticated attacker with network access over HTTP; no user interaction or privileges required.","blast_radius":"Successful exploitation enables full compromise of confidentiality and integrity for all Helidon-accessible data, potentially affecting all downstream services and stored information.","remediation":"Upgrade to Helidon 4.5.6 or later, as this version contains the official fix for CVE-2026-101590.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["auth-bypass","data-exfiltration","web","java","microprofile"],"model":"garnet-coder","analyzedAt":"2026-10-26T08:47:23.289Z"}}