---
id: "CVE-2026-91226"
kind: "vulnerability"
aliases: ["CVE-2026-91226"]
title: "Oracle SOA Suite Fabric Layer flaw lets low-privileged users take over"
severity: "high"
cvss: 7.5
epss: null
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["oracle-fusion-middleware", "oracle-soa-suite", "runtime", "self-hosted"]
not_affected_if: ["other-versions"]
published_at: "2026-10-20T22:20:23+00:00"
first_seen_at: "2026-10-23T21:57:26+00:00"
updated_at: "2026-10-25T03:18:42+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-91226", "first_seen_at": "2026-10-23T21:57:26+00:00"}]
---

# Oracle SOA Suite Fabric Layer flaw lets low-privileged users take over

A flaw in the Fabric Layer component of Oracle SOA Suite, part of Oracle Fusion Middleware, can be exploited over HTTP by an attacker holding a low-privileged account. Successful exploitation can lead to full takeover of the SOA Suite instance, 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 SOA Suite version against the affected versions `12.2.1.4.0` and `14.1.2.0.0`
- Confirm whether the SOA Suite HTTP endpoints are reachable from untrusted networks: unknown

## Fix

- Apply the Oracle Critical Patch Update fix for Oracle SOA Suite (Fabric Layer) for your release line; the exact patch identifier is unknown from the sources

## Timeline

- 2026-10-23T21:57:26+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-91226

## From the sources

Vulnerability in the Oracle SOA Suite product of Oracle Fusion Middleware (component: Fabric Layer).  Supported versions that are affected are 12.2.1.4.0 and  14.1.2.0.0. Difficult to exploit vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle SOA Suite.  Successful attacks of this vulnerability can result in takeover of Oracle SOA Suite. CVSS 3.1 Base Score 7.5 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:H/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_