Executive brief
Oracle Helidon is a lightweight web server framework used to build cloud-native applications. A vulnerability in its Imperative Web Server component allows unauthenticated attackers to modify or delete critical application data over the network, without requiring authentication or user interaction. This could lead to data corruption, service disruption, or unauthorized changes to sensitive business information.
Technical details
The vulnerability is a difficult-to-exploit integrity flaw in the Helidon Imperative Web Server component (versions 3.0.0–3.2.17 and 4.0.0–4.4.1). An unauthenticated attacker with network access can exploit this via HTTP to achieve unauthorized creation, deletion, or modification of critical data accessible by Helidon. The attack vector is network-based and does not require authentication or user interaction, but has a high attack complexity. No privilege escalation is required. Patches are available for supported versions.
Affected products
- Oracle Helidon 3.0.0-3.2.17, 4.0.0-4.4.1
Timeline
- 2026-08-18: disclosed: Published by Oracle as CVE-2026-70716