---
id: "CVE-2026-101557"
kind: "vulnerability"
aliases: ["CVE-2026-101557"]
title: "Oracle E-Business Suite Purchasing: low-privilege web user can take over module"
severity: "high"
cvss: 8.8
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["enterprise-erp", "oracle-ebs", "package", "purchasing"]
not_affected_if: ["unknown"]
published_at: "2026-10-20T22:18:05+00:00"
first_seen_at: "2026-10-23T21:57:22+00:00"
updated_at: "2026-10-23T22:32:40+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101557", "first_seen_at": "2026-10-23T21:57:22+00:00"}]
---

# Oracle E-Business Suite Purchasing: low-privilege web user can take over module

Oracle E-Business Suite Purchasing versions 12.2.3 through 12.2.15 contain a flaw in the Internal Operations component reachable over HTTP. An attacker with a low-privilege account on the network can take over the Purchasing module, with high confidentiality, integrity and availability impact.

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

## How to check

Check the installed Oracle E-Business Suite release level for Purchasing; unknown whether 12.2.3-12.2.15 is the only affected range in the sources.

## Fix

Apply the Oracle Critical Patch Update fix for CVE-2026-101557 from Oracle's advisory; the patch version is unknown from the sources.

## Timeline

- 2026-10-23T21:57:22+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-101557

## From the sources

Vulnerability in the Oracle Purchasing product of Oracle E-Business Suite (component: Internal Operations).  Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Purchasing.  Successful attacks of this vulnerability can result in takeover of Oracle Purchasing. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/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_