---
id: "CVE-2026-91536"
kind: "vulnerability"
aliases: ["CVE-2026-91536"]
title: "Oracle SOA Suite Fabric Layer flaw lets low-privilege users change data"
severity: "medium"
cvss: 5.0
epss: null
exploited: false
status: "open"
category: "vendor"
products: []
ecosystems: []
tags: ["oracle-fusion-middleware", "oracle-soa-suite", "self-hosted", "vendor"]
not_affected_if: ["unknown"]
published_at: "2026-10-20T22:20:57+00:00"
first_seen_at: "2026-10-23T21:57:27+00:00"
updated_at: "2026-10-25T04:30:39+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-91536", "first_seen_at": "2026-10-23T21:57:27+00:00"}]
---

# Oracle SOA Suite Fabric Layer flaw lets low-privilege users change data

A flaw in the Fabric Layer of Oracle SOA Suite 12.2.1.4.0 and 14.1.2.0.0 lets a low-privilege user reach the product over HTTPS. A successful attack can read, change or delete some accessible data and cause a partial denial of service.

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

## Timeline

- 2026-10-23T21:57:27+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-91536

## 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 HTTPS to compromise Oracle SOA Suite.  Successful attacks of this vulnerability can result in  unauthorized update, insert or delete access to some of Oracle SOA Suite accessible data as well as  unauthorized read access to a subset of Oracle SOA Suite accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle SOA Suite. CVSS 3.1 Base Score 5.0 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L).

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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_