Vulnerability in Oracle Corporation Helidon
CVE-2026-71155
Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). The supported version that is affected is 3.2.18. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Helidon. While the vulnerability is in Helidon, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Helidon accessible data as well as unauthorized update, insert or delete access to some of Helidon accessible data. CVSS 3.1 Base Score 8.5 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N).
CVSS v3 metric
CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N.
Affected products
- Oracle Corporation Helidon — versions 3.2.18
References
- secalert_us@oracle.com (vendor-advisory)
Frequently asked questions
- What is CVE-2026-71155?
- CVE-2026-71155 is a high-severity vulnerability in Oracle Corporation Helidon. CVSS score: 8.5/10. Published 2026-08-18.
- How severe is CVE-2026-71155?
- High severity. CVSS v3 base score is 8.5 out of 10.