External risk intelligence

Oracle Identity Manager Connector Mainframe Connectors Takeover Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 9.9)

CVE-2026-35294

A critical vulnerability in Oracle Identity Manager Connector allows a low-privileged attacker with network access to potentially take over the connector. Successful exploitation could significantly impact connected products, leading to a complete compromise of the connector's confidentiality, integrity, and availabili

Halo Surface Signal

Possible · external exposure

3Halo Surface Signal

The Identity Manager Connector is an integration component typically used to link identity systems with backend mainframe or enterprise applications. While it utilizes HTTP for communication, it is generally deployed within internal enterprise network segments rather than being directly exposed to the public internet, though some complex configurations could potentially make it reachable.

Horizon Alert

Summary of the vulnerability and why it matters

A critical vulnerability has been identified in Oracle's Identity Manager Connector, an integration component that links identity systems with backend applications. This issue, if exploited, could allow a low-privileged attacker with network access to potentially take over the connector, impacting related products.

  • A serious flaw affects identity management connectors.
  • It could allow unauthorized control of access systems.
  • Understand relevance to protect core integration.

Attack Path

How an attacker could exploit the issue

An attacker with low-level access can target the Identity Manager Connector over a network using HTTP. Successful attacks on this vulnerable component could lead to the complete takeover of the Identity Manager Connector, potentially impacting other connected products.

  • Attacker needs network access.
  • Triggered via HTTP to a vulnerable component.
  • Full system takeover is possible.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could allow a low-privileged attacker with network access to take over the Identity Manager Connector. Successful attacks may also significantly impact other connected products, leading to a complete compromise of the connector's confidentiality, integrity, and availability.

  • Identity Manager Connector system.
  • Low-privileged attacker over HTTP.
  • Complete takeover of the connector.

Operational Fix

Recommended remediation, mitigation, and detection steps

The Identity Manager Connector, used for linking identity systems with backend applications, is likely managed by platform or infrastructure teams. The immediate first step is to locate all instances of this technology within your environment, determine their reachability and criticality, identify the accountable owners, and then prioritize remediation efforts.

  • Platform and infrastructure teams own resolution.
  • Verify affected connector reachability and criticality.
  • Plan and coordinate remediation activities.

Supplementary metadata

PCI scan relevance

Yes

CVE-2026-35294 — Halo PCI Relevance: Yes. Under typical PCI ASV external scan criteria, this issue may be flagged for scan prioritization.

This vulnerability in Oracle Fusion Middleware's Identity Manager Connector allows a low-privileged attacker to compromise the system, which could lead to a full takeover and impact other products.

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

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.

Free EASM Trial See How Signal Works

Frequently asked questions

What is the Oracle Identity Manager Connector?

It is a specialized software component within Oracle Fusion Middleware designed to bridge identity management systems with backend mainframe or enterprise applications. Its primary function is to facilitate the secure transfer of user credentials and access rights across disparate environments, ensuring that identity policies are synchronized with large-scale data processing systems.

What does CWE-284 mean for CVE-2026-35294?

CWE-284 refers to Improper Access Control. In the context of this vulnerability, it means the Identity Manager Connector fails to properly enforce restrictions on who can perform specific actions or access sensitive resources. An attacker can exploit this weakness to bypass standard security checks and gain unauthorized control over the connector, even if they only have low-level privileges to begin with.

How is this vulnerability triggered?

An attacker triggers this flaw by sending specifically crafted HTTP requests to the Identity Manager Connector over a network. It is important to note that this requires the attacker to have at least low-level network access to the component. The vulnerability is not triggered by simple passive observation or by non-network-based activities.

Why should I care about this vulnerability?

According to Halo Surface Signal, while these connectors are typically hidden deep within internal enterprise networks, they are critical integration points. If an attacker gains network access to a vulnerable instance, they could potentially compromise the link between your identity systems and backend applications, which may have cascading effects on other connected products in your infrastructure.

What steps should I take if I use this software?

Begin by identifying every instance of the Identity Manager Connector running in your environment. Once mapped, assess how reachable these instances are from your internal network and determine their importance to your business operations. Work with the teams responsible for your infrastructure to prioritize these systems for remediation, ensuring you have the necessary updates ready once they are released by Oracle.

References

Sources and related resources

Primary sources: NVD, CVE.org.

NVDPublished