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CriticalVulnerabilityCVE-2026-91218updated 25 Oct 2026, 18:35 UTC

Oracle SOA Suite flaw lets low-privilege users take over data and nearby systems

Someone with a basic login and network access to Oracle SOA Suite could read, change, or delete business data they should not touch. Because the flaw can spread beyond SOA Suite itself, other connected systems may also be exposed.

Official, 2 sources
SeverityCriticalCVSS 9.6 of 10
Being exploited?UnclearNo reports either way yet
Fix available?UnclearNo fixed version published in the sources yet
How sure is this?Official, 2 sourcesBacked by an official source

How the attack works simplified

  1. 1Low-privilege userHolds a basic account on the network
  2. 2HTTP requestCrafted request sent to SOA Suite
  3. 3Fabric Layer flawFlawed handling lets the request escape its limits
  4. 4Data accessCritical and all accessible data read or altered
  5. 5Other products hitScope change impacts connected systems
  6. ResultAttacker reads, changes, or deletes critical data

What happened

A critical vulnerability in the Fabric Layer component of Oracle SOA Suite (Oracle Fusion Middleware) can be exploited over HTTP by an attacker with low privileges, with a scope change that affects other products. CVSS 9.6.

Why it is dangerous: Successful attacks can give unauthorized create, modify, delete, and full access to SOA Suite-accessible data, and may impact additional connected products. Organizations running SOA Suite for integration and business processes are at risk.

Are you affected?

You are affected if you run Oracle SOA Suite 12.2.1.4.0 or 14.1.2.0.0 with the HTTP interface reachable from the network.

Oracle SOA Suite 12.2.1.4.0; Oracle SOA Suite 14.1.2.0.0 (Fabric Layer component)

What to do

  1. Check whether you run Oracle SOA Suite 12.2.1.4.0 or 14.1.2.0.0
  2. Apply the official patch or update from Oracle's Critical Patch Update for this CVE
  3. Restrict network access to SOA Suite HTTP endpoints until patched
  4. Review logs for unusual requests and unauthorized data changes

Timeline

  1. 20 Oct 2026, 22:20 UTC
    Publicly disclosed
  2. 20 Oct 2026, 22:20 UTC
    Reported by NVD · NVD
  3. 25 Oct 2026, 18:35 UTC
    GitHub Advisory reported on it · GitHub Advisory

Sources 2 reports, oldest first

Official vendor, government CERT or advisory database

Technical details

ID
CVE-2026-91218 · GHSA-5xr7-qwg2-jv62
CVSS
9.6 / 10
EPSS
0.3% chance of exploitation within 30 days
Disclosed
20 Oct 2026, 22:20 UTC
On Zero Radar
before the radar started
Last change
25 Oct 2026, 18:35 UTC

The plain-language parts and the attack diagram were written by an AI model (anthropic/claude-haiku-5.5) from the sources above. Facts like versions, exploitation and dates come from the sources themselves. How Zero Radar works

Oracle SOA Suite flaw lets low-privilege users take over data and nearby systems · Zero Radar