External risk intelligence

Oracle E-Business Suite Universal Work Queue Takeover Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 9.9)

CVE-2026-46963

A critical vulnerability in Oracle Universal Work Queue allows low-privileged attackers with network access to compromise the system, potentially leading to a full takeover and impacting other products. This issue affects confidentiality, integrity, and availability.

Halo Surface Signal

Possible · external exposure

3Halo Surface Signal

The vulnerability affects a component within Oracle E-Business Suite, an enterprise application typically deployed within internal corporate networks. While network access via HTTP is required, Oracle E-Business Suite components are generally protected by internal network controls and are not typically exposed directly to the public internet.

Horizon Alert

Summary of the vulnerability and why it matters

A critical vulnerability has been identified in Oracle's Universal Work Queue, part of the E-Business Suite. This issue is easily exploitable by attackers with network access, potentially leading to a full compromise of the Universal Work Queue and impacting other connected products. The severity of this vulnerability is very high, affecting confidentiality, integrity, and availability.

  • Unauthorized access to work queue functions.
  • Impacts critical business operations and data.
  • Confirm relevance and assess potential exposure.

Attack Path

How an attacker could exploit the issue

An attacker with network access can exploit this vulnerability in Oracle Universal Work Queue by targeting the Work Provider Site Level Administration component. Since it's easily exploitable and requires only low privileges, a successful attack could lead to a complete takeover of the Work Queue and potentially impact other connected products.

  • Low-privileged network access is required.
  • Vulnerable component is Work Provider Site Level Administration.
  • Complete takeover of the work queue.

Live Threat

Current exploitation, exposure, and threat context

A low-privileged attacker with network access via HTTP could compromise Oracle Universal Work Queue. This could lead to the takeover of the Oracle Universal Work Queue, potentially impacting other connected products.

  • Oracle Universal Work Queue and related products.
  • Via network access over HTTP.
  • Complete takeover of the system.

Operational Fix

Recommended remediation, mitigation, and detection steps

Understanding who needs to act on this critical vulnerability first requires identifying the teams responsible for Oracle E-Business Suite. Typically, application owners or a dedicated E-Business Suite administration team would be accountable. The initial practical move involves locating all instances of the affected Oracle Universal Work Queue, assessing their business criticality and network exposure, and then engaging the appropriate technical leaders to plan remediation, which may involve vendor coordination or temporary risk reduction measures.

  • Application owners should own the issue.
  • Verify instances and business criticality first.
  • Plan remediation based on exposure and risk.

Supplementary metadata

PCI scan relevance

Yes

CVE-2026-46963 — Halo PCI Relevance: Yes. Under typical PCI ASV external scan criteria, this issue may be flagged for scan prioritization.

This vulnerability in Oracle Universal Work Queue allows an attacker to take over the system, 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:L/UI:N/S:C/C:H/I:H/A:H

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Frequently asked questions

What is Oracle Universal Work Queue?

It is a central component within Oracle E-Business Suite that manages and routes various work items, such as service requests or tasks, to the appropriate agents. It helps organizations streamline business operations by ensuring work is distributed efficiently to the correct users or departments within the broader enterprise suite.

What does CVE-2026-46963 mean for system security?

This vulnerability is classified as CWE-284, which concerns improper access control. It allows an attacker with low-level privileges to bypass restrictions in the Work Provider Site Level Administration component. Effectively, this means the software fails to properly verify if a user has the authority to perform administrative functions, potentially granting them total control over the work queue.

How can an attacker trigger this vulnerability?

An attacker needs network access to send specifically crafted HTTP requests to the vulnerable administration component. It is important to note that this is not triggered by standard, authorized daily use of the work queue interface by general business users. Instead, it requires the ability to interact directly with the administrative backend via the network.

Do I need to worry about this if my Oracle E-Business Suite is internal?

Halo Surface Signal indicates that while the flaw requires network access, Oracle E-Business Suite is often hosted within private corporate networks rather than directly on the public internet. However, internal network access is still a factor, as an attacker who has already gained a foothold inside your network could reach and exploit this component if it is not properly segmented.

What are the first steps to address this CVE?

Begin by identifying all running instances of Oracle Universal Work Queue within your environment to understand your total footprint. Work with your application administration team to verify the business criticality of these instances. Once mapped, coordinate with your technical leadership to review vendor guidance and prioritize patching or risk reduction for your most critical or accessible systems.

References

Sources and related resources

Primary sources: NVD, CVE.org.

NVDPublished