CVE-2026-83439: High severity Oracle Oracle Fusion Middleware Helidon vulnerability
Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-security-providers-idcs-mapper). Supported versions that are affected are 3.0.0-3.2.20 and 4.0.0-4.5.4. Easily exploitable vulnerability allows low privileged 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 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
helidon-security-providers-idcs-mapperto a version that resolves this vulnerability.Fixed in 3.2.20 - Upgrade
Upgrade
helidon-security-providers-idcs-mapperto a version that resolves this vulnerability.Fixed in 4.5.4
Event History
Frequently Asked Questions
Which deployments are affected?
Affected supported versions are Helidon 3.0.0 through 3.2.20 and 4.0.0 through 4.5.4, specifically in the helidon-security-providers-idcs-mapper component.
What access does an attacker need to exploit this issue?
An attacker needs network access to the target over HTTP and low-privileged access. No user interaction is required, and exploitation is described as easy.
What could a successful attack allow?
A successful attack can allow unauthorized access to critical data or all data accessible to Helidon, and unauthorized creation, deletion, or modification of that data. The stated impact affects confidentiality and integrity, not availability.