How do I check whether I am affected by CVE-2026-91239?

Affected if you run Oracle SOA Suite 12.2.1.4.0 or 14.1.2.0.0. Run '$ORACLE_HOME/OPatch/opatch lsinventory' on each SOA host to see the installed version and patches. Compare against the October 2026 CPU patch list for Fusion Middleware in My Oracle Support. This is standard Oracle practice and is not confirmed on the advisory page.

What is the fix for CVE-2026-91239?

Apply the SOA Suite patch from the October 2026 CPU (Fusion Middleware Patch Availability Document in My Oracle Support, support contract needed). Patch ID: unknown; the MOS document would settle it. Until patched, restrict network access to SOA Suite and T3/IIOP endpoints to trusted hosts and review the low-privilege accounts.

Who is not affected by CVE-2026-91239?

Not affected if: managed-hosting, other-versions.

Live › vulnerability › CVE-2026-91239

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high8.8Runtime

Oracle SOA Suite: low-privilege network attacker can take over server

Oracle SOA Suite (Fabric Layer) 12.2.1.4.0 and 14.1.2.0.0: a low-privileged attacker with network access can take over SOA Suite (CVSS 3.1 8.8, AV:N/AC:L/PR:L). Fixed in Oracle's October 2026 Critical Patch Update. No exploitation reported and no public PoC found.

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

CVSS 3.x

8.8

high

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 high, 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 takes over the SOA Suite server and reads or changes its data.
CVSS said: 8.8. The facts above say medium; we keep the sources' high until an analyst looks.

Who is affected

1 product

Know the next one before it finds you.

Add to Slack

Live › vulnerability › CVE-2026-91239

Go to dashboard

high8.8Runtime

Oracle SOA Suite: low-privilege network attacker can take over server

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

CVSS 3.x

8.8

high

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 high, 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 takes over the SOA Suite server and reads or changes its data.
CVSS said: 8.8. The facts above say medium; we keep the sources' high 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 network attacker can take over server

Why it is high, and not just CVSS

Who is affected

Know the next one before it finds you.

Oracle SOA Suite: low-privilege network attacker can take over server

Why it is high, 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