Vulnerability in Oracle Corporation Helidon
CVE-2026-73903
Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). The supported version that is affected is 4.5.1. 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. CVSS 3.1 Base Score 7.5 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N).
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Oracle Corporation Helidon — versions 4.5.1
Weakness classification (CWE)
References
- secalert_us@oracle.com (vendor-advisory)
Frequently asked questions
- What is CVE-2026-73903?
- CVE-2026-73903 is a high-severity vulnerability in Oracle Corporation Helidon, classified under Improper Access Control. CVSS score: 7.5/10. Published 2026-08-18.
- How severe is CVE-2026-73903?
- High severity. CVSS v3 base score is 7.5 out of 10.