CVE-2026-70727: Medium severity Oracle Helidon (Imperative Web Server) vulnerability
Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported versions that are affected are 3.0.0-3.2.17. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTPS to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Helidon accessible data. CVSS 3.1 Base Score 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Oracle Fusion Middleware Helidon (Imperative Web Server)to a version that resolves this vulnerability.Fixed in 3.2.17
Event History
Frequently Asked Questions
Who is exposed to this vulnerability?
Oracle Helidon deployments using the Imperative Web Server component on supported version 3.2.18 are affected when they are reachable by an attacker over HTTPS.
Does exploitation require authentication or user interaction?
No. The vulnerability is described as easily exploitable by an unauthenticated attacker with network access via HTTPS, and it requires no user interaction.
What is the expected impact of a successful attack?
A successful attack can give the attacker unauthorized read access to a subset of data accessible through Helidon. The stated impact is limited to confidentiality; integrity and availability impacts are not identified.