What is CVE-2026-73927?

CVE-2026-73927 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-2026-73927?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Oracle Corporation Helidon

CVE-2026-73927

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). The supported version that is affected is 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 hang or frequently repeatable crash (complete DOS) of Helidon. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

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:N/A:H.

Affected products

Oracle Corporation Helidon — versions 3.2.20

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

secalert_us@oracle.com (vendor-advisory)

Frequently asked questions

What is CVE-2026-73927?: CVE-2026-73927 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-2026-73927?: High severity. CVSS v3 base score is 7.5 out of 10.