What is CVE-2026-71074?

CVE-2026-71074 is a critical-severity vulnerability in Oracle Corporation Helidon, classified under Improper Access Control. CVSS score: 9.8/10. Published 2026-08-18.

How severe is CVE-2026-71074?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Oracle Corporation Helidon

CVE-2026-71074

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 unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in takeover of Helidon. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Oracle Corporation Helidon — versions 3.2.18

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

secalert_us@oracle.com (vendor-advisory)

Frequently asked questions

What is CVE-2026-71074?: CVE-2026-71074 is a critical-severity vulnerability in Oracle Corporation Helidon, classified under Improper Access Control. CVSS score: 9.8/10. Published 2026-08-18.
How severe is CVE-2026-71074?: Critical severity. CVSS v3 base score is 9.8 out of 10.