External risk intelligence

Oracle WebCenter Enterprise Capture RMI Takeover Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 10.0)

CVE-2026-46778

A critical vulnerability in Oracle WebCenter Enterprise Capture allows unauthenticated remote attackers to compromise the system. Successful exploitation could lead to a complete takeover of the product, potentially impacting other connected Oracle products. The vulnerability is reachable via network access using RMI,

Missing Authentication

Halo Surface Signal

Possible · external exposure

3Halo Surface Signal

The vulnerability is reachable via network access using the RMI protocol. While RMI services are often deployed within internal, segmented networks, they are occasionally exposed to the public internet in some configurations. The CVE context does not establish that public-facing deployment is the standard or common use case for this specific component.

Horizon Alert

Summary of the vulnerability and why it matters

A critical vulnerability has been identified in Oracle WebCenter Enterprise Capture, a component within Oracle Fusion Middleware. This issue could allow an unauthenticated attacker to gain control of the system remotely, potentially impacting other connected products and leading to a complete takeover of the WebCenter Enterprise Capture functionality. The high CVSS score indicates severe potential consequences for confidentiality, integrity, and availability.

  • Unauthenticated remote takeover of Oracle WebCenter Enterprise Capture.
  • Matters due to potential impact on connected Oracle products.
  • Confirm relevance and assess potential exposure.

Attack Path

How an attacker could exploit the issue

An attacker could target Oracle WebCenter Enterprise Capture by exploiting a vulnerability in its Client Bundle component. This could be initiated remotely, without any prior authentication, leveraging the RMI network protocol. A successful attack could grant the attacker complete control over the vulnerable product, potentially affecting other connected Oracle products as well.

  • No authentication required for entry.
  • Exploitable via network using RMI.
  • Full takeover of the product.

Live Threat

Current exploitation, exposure, and threat context

An unauthenticated attacker with network access via RMI could potentially take over Oracle WebCenter Enterprise Capture. This attack could significantly impact additional products connected to Enterprise Capture, affecting its confidentiality, integrity, and availability.

  • Oracle WebCenter Enterprise Capture system data.
  • Unauthenticated network access via RMI.
  • Complete takeover of the system.

Operational Fix

Recommended remediation, mitigation, and detection steps

The Oracle WebCenter Enterprise Capture product is affected by this critical vulnerability, suggesting that application owners and potentially infrastructure or platform teams managing Oracle Fusion Middleware are responsible. The initial practical move should be to identify all instances of Oracle WebCenter Enterprise Capture, determine their network reachability and business criticality, and locate the accountable owner for each instance to plan remediation based on risk.

  • Identify application owners and affected systems.
  • Verify network exposure and business criticality.
  • Plan remediation based on risk and owner.

Supplementary metadata

PCI scan relevance

Yes

CVE-2026-46778 — Halo PCI Relevance: Yes. Under typical PCI ASV external scan criteria, this issue may be flagged for scan prioritization.

This Oracle WebCenter Enterprise Capture vulnerability allows unauthenticated network attackers to achieve complete takeover, which would likely cause a PCI ASV scan to fail.

Scan-prioritization guidance only—not a PCI DSS certification or ASV attestation.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

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Frequently asked questions

What is Oracle WebCenter Enterprise Capture?

Oracle WebCenter Enterprise Capture is a software solution within Oracle Fusion Middleware designed to automate document scanning, ingestion, and indexing. It helps organizations streamline the capture of physical and electronic documents into enterprise content management systems. This specific vulnerability affects the Client Bundle component, which manages the communication and processing tasks required for these ingestion workflows in versions 12.2.1.4.0 and 14.1.2.0.0.

What does CWE-306 mean for CVE-2026-46778?

CWE-306 refers to a Missing Authentication for Critical Function weakness. In the context of CVE-2026-46778, this means the software performs sensitive operations or provides access to system features without first verifying the identity of the user. Because the system fails to check for valid credentials, an attacker can interact with the Client Bundle component directly, leading to a complete takeover of the application.

How does an attacker trigger this vulnerability?

An attacker triggers this bug by sending specific commands over the network using the Remote Method Invocation (RMI) protocol to the affected system. No interaction or login from a legitimate user is required to initiate the attack. Crucially, the vulnerability cannot be triggered through local console access alone; it specifically requires the ability to reach the RMI service over a network connection to reach the vulnerable component.

Is my system at risk if it is not internet-facing?

According to Halo Surface Signal, this vulnerability requires network access via RMI. While public-facing systems are at higher risk, internal systems reachable via RMI are also potentially vulnerable if an attacker gains access to your internal network. You should prioritize assets that have RMI ports accessible to anyone outside of the core administrative team, as these represent the most likely paths for an attacker to reach the vulnerable component.

What should I do first to address this CVE?

Your first step is to create an inventory of all systems running Oracle WebCenter Enterprise Capture. Once identified, work with the application owners to document the network reachability of each instance and assess its business criticality. Use this information to prioritize which systems need immediate attention or isolation while you wait for official remediation guidance from Oracle.

References

Sources and related resources

Primary sources: NVD, CVE.org.

NVDPublished