---
id: "CVE-2026-91344"
kind: "vulnerability"
aliases: ["CVE-2026-91344"]
title: "Oracle Outside In Clean Content SDK: unauthenticated HTTP request crashes service"
severity: "high"
cvss: 7.5
epss: 0.00441
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["fusion-middleware", "oracle", "outside-in", "package", "self-hosted"]
not_affected_if: ["no-network-exposure", "sdk-not-deployed"]
published_at: "2026-10-20T22:20:36+00:00"
first_seen_at: "2026-10-23T21:57:26+00:00"
updated_at: "2026-10-25T12:38:52+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-91344", "first_seen_at": "2026-10-23T21:57:26+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-91344", "first_seen_at": "2026-10-25T12:38:52+00:00"}]
---

# Oracle Outside In Clean Content SDK: unauthenticated HTTP request crashes service

The Oracle Outside In Clean Content SDK 8.5.8 can be made to hang or crash repeatedly by an unauthenticated attacker sending crafted requests over HTTP. The impact is denial of service only; no data is read or changed according to the CVSS vector.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check whether an Oracle Outside In Clean Content SDK component is in use and which version it is: unknown
- Look for the `8.5.8` version string in the application's Oracle Fusion Middleware deployment: unknown

## Fix

- Move Oracle Outside In Technology off `8.5.8` to a patched release named in Oracle's security advisory: unknown

## Timeline

- 2026-10-23T21:57:26+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-91344
- 2026-10-25T12:38:52+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-91344

## From the sources

Vulnerability in the Oracle Outside In Technology product of Oracle Fusion Middleware (component: Outside In Clean Content SDK).   The supported version that is affected is 8.5.8. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Outside In Technology.  Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Outside In Technology. CVSS 3.1 Base Score 7.5 (Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_