Live Exposure Defense: From CVE to Confirmed Exposure in 12 Hours – See more

Back
New CVE Detected

CVE-2026-71074 – Remote Code Execution/Full Compromise – Oracle Helidon 3.2.18 (Imperative Web Serve

Be the first to know when new zero-days emerge:

Subscribe to Email Alerts
Subscribe to RSS Feed

Summary

CVE-2026-71074 is a critical, unauthenticated remote compromise vulnerability in the Imperative Web Server component of Oracle Helidon (part of Oracle Fusion Middleware). The flaw allows an attacker with only network access via HTTP — no credentials and no user interaction — to fully take over an affected Helidon instance. Oracle rates the issue 9.8 (Critical) and describes it as "easily exploitable," which combined with the network attack vector makes it a high-priority patching target for any internet-facing Helidon deployment.

Technical details

  • Root cause: A flaw in the Imperative Web Server component of Oracle Helidon that permits an unauthenticated attacker to compromise the server.
  • Trigger conditions: Exploitable remotely over HTTP with no authentication or user interaction required (AC:L, PR:N, UI:N).
  • Attack vector: Network (AV:N) — reachable by any client that can send HTTP requests to the exposed Helidon service.
  • Impact: Oracle’s advisory states successful exploitation can result in "takeover of Helidon," with the CVSS vector indicating high impact to confidentiality, integrity, and availability (C:H/I:H/A:H) — consistent with full compromise of the affected server/application.

Affected software

  • Oracle Helidon, version 3.2.18 (Imperative Web Server component), as listed in the official CVE record and Oracle’s August 2026 Critical Patch Update.

Severity

  • CVSS v3.1 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

Mitigation and recommended actions

  • Immediate: Apply the patches provided in Oracle’s August 2026 Critical Patch Update (CPU) advisory for the Helidon product family. Organizations running Helidon 3.2.18 should update to the fixed release identified for their branch in that advisory as soon as possible.
  • If immediate patching isn’t feasible: Restrict network access to Helidon-based web services (e.g., via firewall rules, VPN, or reverse proxy allow-listing) so the HTTP listener is not reachable from untrusted networks, and monitor exposed Helidon endpoints for anomalous or malformed requests until the patch can be applied.
  • Review all internet-facing assets for use of the affected Helidon version and prioritize remediation given the unauthenticated, network-based attack path and critical severity score.

References

Are you exposed?

Get a free report of your organization’s exposure to this CVE and threat

  • Mapping of all Assets with this Technology
  • Identification of potentially exposed assets to this CVE
  • Confirmation of verified exploitable assets
Get Exposure Report

How IONIX’s External Exposure Management Platform Detects and Validates
Zero-Days to Shrink MTTR

1

Map your entire attack surface (continously)

IONIX uses multi-factor discovery methods, including DNS analysis, certificate mapping, metadata inspection, and more, to automatically map every internet-facing asset across your environment. This includes cloud instances, third-party platforms, shadow IT, and even forgotten infrastructure that traditional tools miss.

2

Monitor for new CVEs

Dozens of threat intel feeds using agentic technology are continuously analyzed to detect the appearance of proof-of-concept code, exploit kits, and indicators of active targeting. IONIX goes further by applying AI to proactively evaluate whether emerging vulnerabilities are likely to be exploited, even before PoCs go public.

3

Identify Potential External Exposures

Not all CVEs matter. IONIX filters vulnerabilities by asking attacker-centric questions: Can it be reached from the internet? Does it require authentication? Is it being exploited in the wild? This dramatically reduces noise and focuses teams on threats that can actually be weaponized.

4

Create Safe, Scalable Exploit Validations

IONIX transforms real-world PoCs into safe, non-intrusive test payloads that can be run in production environments without disruption. These simulations are precisely targeted to the systems that are vulnerable, ensuring rapid validation without unnecessary load.

5

Execute Exploit Validations

By combining context about software stack, versioning, exposure status, and reachability, IONIX ensures that only the right payloads are executed against the right assets, maximizing efficiency and minimizing risk.

6

Drive Fast and Actionable Remediation

Results are routed through integrations with ticketing, SOAR, and SIEM tools. Issues are written in plain language, bundled into remediation clusters, and prioritized based on asset criticality, exploitability, and blast radius. This shortens mean time to remediation (MTTR) and empowers teams to act with confidence.

Are you exposed?

Get a free report of your organization’s exposure to this CVE and threat

  • Mapping of all Assets with this Technology
  • Identification of potentially exposed assets to this CVE
  • Confirmation of verified exploitable assets
Get Exposure Report
Close

Subscribe to Threat Center RSS

Copy/paste the link below into your preferred RSS reader or follow these instructions to subscribe to Slack alerts.

Open RSS feedSlack setup instructions

Close

Get Real-Time CVE Alerts to Your Email

Be the first to know when new zero-days emerge