Oracle Outside In Technology: Deserialization of untrusted data in Image Export SDK
Summary
Oracle Outside In Technology, specifically the Image Export SDK component, contains a deserialization flaw (CWE-502) that affects version 8.5.8. An attacker with local logon to a system where the SDK runs can compromise the library, but exploitation requires a user to interact with a malicious input. According to the CVE record, a successful attack can lead to full takeover of the affected component (CVSS 3.1: 7.8, High).
Affected
- Oracle Outside In Technology 8.5.8 (Image Export SDK component)
Fixed in
- Unknown. Obtain the fixed version and patch number from the Oracle October 2026 Critical Patch Update advisory (Outside In risk matrix) or from Oracle Support (MOS).
Workaround
- Unknown. Oracle has not published a workaround in the sources reviewed.
- If patching is delayed, identify applications that load the Image Export SDK and restrict who can submit files to them.
Exploitation
- Not listed in CISA KEV.
- CISA SSVC: exploitation none, automatable no, technical impact total.
- No public proof of concept found in the research. This does not prove that none exists.
Our recommendation
- Ask application vendors whether their products embed Oracle Outside In and whether they have shipped the October 2026 CPU.
- Apply the vendor patch as soon as it is available and verify the fixed version in Oracle's advisory.
- Restrict uploads and file inputs to affected applications, especially those accepting files from external users.
- Monitor for unexpected processes or file activity on hosts running affected applications.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Oracle Critical Patch Update Advisory, October 2026 www.oracle.com
- NVD record via Vulners vulners.com
- OpenCVE CVE-2026-91459 app.opencve.io
- Oracle Outside In Image Export SDK Developer's Guide docs.oracle.com
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 1 Nov 2026, 23:14.
Original description (NVD)
Vulnerability in the Oracle Outside In Technology product of Oracle Fusion Middleware (component: Outside In Image Export SDK). The supported version that is affected is 8.5.8. Easily exploitable vulnerability allows unauthenticated attacker with logon to the infrastructure where Oracle Outside In Technology executes to compromise Oracle Outside In Technology. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in takeover of Oracle Outside In Technology. CVSS 3.1 Base Score 7.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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.
Affected? We can help.
We check whether your systems are affected, install updates and close the gap – continuously with the System Health Checker if you wish.