How do I check whether I am affected by CVE-2026-91218?

Find your SOA Suite version and patch level. On the host run: $ORACLE_HOME/OPatch/opatch lsinventory, and look for the SOA Suite 12.2.1.4.0 or 14.1.2.0.0 home. Then compare the installed patches with the October 2026 CPU Fusion Middleware patch availability document on My Oracle Support. If the October 2026 SOA patch is not listed, you are exposed. Exposure is highest if SOA HTTP endpoints are reachable by low-privileged or untrusted users.

What is the fix for CVE-2026-91218?

Apply the October 2026 CPU patch for Oracle SOA Suite (Fusion Middleware patch availability document, My Oracle Support). Oracle gives no new version number; the product stays on 12.2.1.4.0 or 14.1.2.0.0 with the patch applied. Until then, restrict HTTP access to SOA endpoints to trusted accounts and networks with a firewall or reverse proxy. This reduces the risk but does not remove the flaw.

Live › vulnerability › CVE-2026-91218

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critical9.6Runtime

Oracle SOA Suite: low-privilege HTTP request can alter or read all data

Oracle SOA Suite 12.2.1.4.0 and 14.1.2.0.0 have a flaw in the Fabric Layer. A low-privileged user with HTTP access can create, change or delete critical data and read all data the suite can access. The impact can reach other products (scope change). CVSS 9.6. Fixed by Oracle's October 2026 Critical Patch Update (published 2026-10-20).

Summary written from the sources below. Check the originals before acting.

CVSS 3.x

9.6

critical

scored by [email protected]

known so far5 of 6

missing: exploitation

First public: Oct 20, 2026 UTC
Last modified: Oct 23, 2026
Status: open
Known exploitation: None reported
Public exploit: None on GitHub
EPSS: not scored

First seen by InfraStack 2026-10-23 21:57 UTC. All times on this page are UTC.

Why it is critical, and not just CVSS

Likelihood → · Impact ↓

critical

high

medium

high

medium

low

medium

low

Exploited: No reports yet.
Needs login: Yes.
Needs a special setup: Not known from the sources.
Reachable from: network.
Worst case: Attacker reads and changes all SOA Suite data and reaches other products.
CVSS said: 9.6. The facts above say medium; we keep the sources' critical until an analyst looks.

Who is affected

1 product

Know the next one before it finds you.

Add to Slack

Live › vulnerability › CVE-2026-91218

Go to dashboard

critical9.6Runtime

Oracle SOA Suite: low-privilege HTTP request can alter or read all data

Summary written from the sources below. Check the originals before acting.

CVSS 3.x

9.6

critical

scored by [email protected]

known so far5 of 6

missing: exploitation

First public: Oct 20, 2026 UTC
Last modified: Oct 23, 2026
Status: open
Known exploitation: None reported
Public exploit: None on GitHub
EPSS: not scored

First seen by InfraStack 2026-10-23 21:57 UTC. All times on this page are UTC.

Why it is critical, and not just CVSS

Likelihood → · Impact ↓

critical

high

medium

high

medium

low

medium

low

Exploited: No reports yet.
Needs login: Yes.
Needs a special setup: Not known from the sources.
Reachable from: network.
Worst case: Attacker reads and changes all SOA Suite data and reaches other products.
CVSS said: 9.6. The facts above say medium; we keep the sources' critical until an analyst looks.

Who is affected

1 product

Know the next one before it finds you.

Add to Slack

Oracle SOA Suite: low-privilege HTTP request can alter or read all data

Why it is critical, and not just CVSS

Who is affected

Know the next one before it finds you.

Oracle SOA Suite: low-privilege HTTP request can alter or read all data

Why it is critical, and not just CVSS

Who is affected

Know the next one before it finds you.

How to check

The fix

Who had it, and when

What the sources say, verbatim

Sources