---
id: "CVE-2026-101566"
kind: "vulnerability"
aliases: ["CVE-2026-101566"]
title: "Oracle E-Business Suite: Application Object Library flaw lets local users take over"
severity: "high"
cvss: 7.8
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["application-object-library", "database", "oracle-ebs", "package", "self-hosted"]
not_affected_if: ["no-low-privilege-logon"]
published_at: "2026-10-20T22:18:08+00:00"
first_seen_at: "2026-10-23T21:57:22+00:00"
updated_at: "2026-10-25T03:09:59+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101566", "first_seen_at": "2026-10-23T21:57:22+00:00"}]
---

# Oracle E-Business Suite: Application Object Library flaw lets local users take over

Oracle Application Object Library, part of Oracle E-Business Suite, has a flaw in its database privileges component. A low-privileged user who can log on to the host running it can take over the product, with full read, write and availability impact.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Confirm the Oracle E-Business Suite release level in use; the sources say versions 12.2.3 through 12.2.15 are affected
- Check whether any application or database accounts with low privileges can log on to the EBS application tier host
- Review the Oracle Critical Patch Update advisory for the patch that covers this CVE (unknown from the sources)

## Fix

- Apply the Oracle Critical Patch Update fix for Oracle Application Object Library in EBS 12.2.x (exact patch name unknown from the sources)
- Restrict logon access to EBS application tier hosts to administrators until patched

## Timeline

- 2026-10-23T21:57:22+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-101566

## From the sources

Vulnerability in the Oracle Application Object Library product of Oracle E-Business Suite (component: DB Privileges).  Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Application Object Library executes to compromise Oracle Application Object Library.  Successful attacks of this vulnerability can result in takeover of Oracle Application Object Library. CVSS 3.1 Base Score 7.8 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_