Oracle SOA Suite: Missing authentication in Fabric Layer allows remote takeover
Summary
Oracle SOA Suite (Fusion Middleware, Fabric Layer) versions 12.2.1.4.0 and 14.1.2.0.0 contain a missing or incorrect authentication flaw (CWE-287, CWE-306). An unauthenticated attacker with network access via HTTP can compromise the product and take it over, affecting confidentiality, integrity and availability. CVSS 3.1 base score is 9.8 (Critical). No exploitation in the wild is known, and CISA SSVC lists automatable as yes.
Affected
- Oracle SOA Suite 12.2.1.4.0
- Oracle SOA Suite 14.1.2.0.0
Fixed in
Unknown. Apply the October 2026 Critical Patch Update for the affected versions once the exact patch is confirmed in the Oracle advisory.
Workaround
- No vendor-specific workaround known.
- Pending the patch, restrict HTTP access to SOA Suite endpoints to trusted networks (general hardening, not confirmed for this CVE).
Exploitation
- Exploited in the wild: no evidence found (CISA SSVC: exploitation none).
- Not listed in CISA KEV as of the research date.
- Public proof of concept: none found.
- Oracle exploitation statement: unknown.
Our recommendation
- Inventory all SOA Suite installations and check whether they are reachable from the internet or partner networks.
- Treat exposed instances as urgent and apply the October 2026 CPU patch for the affected versions as soon as the exact patch is confirmed.
- Until patched, restrict HTTP access to trusted networks and monitor logs for unusual requests.
- Patch the whole SOA Suite installation, as other Fabric Layer CVEs from the same CPU are also critical.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Oracle Security Alert: October 2026 CPU www.oracle.com
- Oracle Blog: October 2026 Critical Patch Update released blogs.oracle.com
- NVD mirror (Vulners): CVE-2026-91235 vulners.com
- OpenCVE: CVE-2026-91235 app.opencve.io
- Brandefense: Oracle October 2026 CPU brandefense.io
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 30 Oct 2026, 17:13.
Original description (NVD)
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. Easily exploitable vulnerability allows unauthenticated 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 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
NVD references (1)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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