---
id: "CVE-2026-91349"
kind: "vulnerability"
aliases: ["CVE-2026-91349"]
title: "Oracle Outside In Clean Content SDK: unauthenticated network crash denies service"
severity: "high"
cvss: 7.5
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["fusion-middleware", "oracle", "outside-in", "package", "self-hosted"]
not_affected_if: ["no-outside-in-sdk"]
published_at: "2026-10-20T22:20:37+00:00"
first_seen_at: "2026-10-23T21:57:26+00:00"
updated_at: "2026-10-25T03:18:29+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-91349", "first_seen_at": "2026-10-23T21:57:26+00:00"}]
---

# Oracle Outside In Clean Content SDK: unauthenticated network crash denies service

The Oracle Outside In Clean Content SDK 8.5.8 can be made to hang or repeatedly crash over HTTP by an unauthenticated remote attacker. The impact is availability only: a successful attack takes the component down repeatedly but does not expose data or allow code execution according to the CVSS vector.

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

## How to check

- Check whether the Oracle Outside In Clean Content SDK is installed and at version `8.5.8` in the application's dependencies or deployment.
- unknown for other checks: the sources do not give a command or file path.

## Fix

- Move the Oracle Outside In Clean Content SDK to a patched release from Oracle's Critical Patch Update advisory; the fixed version is unknown from the sources.

## Timeline

- 2026-10-23T21:57:26+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-91349

## 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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