---
id: "CVE-2026-91247"
kind: "vulnerability"
aliases: ["CVE-2026-91247"]
title: "Oracle WebCenter Portal: Runtime Tools flaw allows unauthenticated data changes over HTTP"
severity: "medium"
cvss: 5.9
epss: null
exploited: false
status: "open"
category: "vendor"
products: []
ecosystems: []
tags: ["fusion-middleware", "java", "oracle", "vendor", "webcenter-portal"]
not_affected_if: ["unknown"]
published_at: "2026-10-20T22:20:25+00:00"
first_seen_at: "2026-10-23T21:57:26+00:00"
updated_at: "2026-10-25T04:08:16+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-91247", "first_seen_at": "2026-10-23T21:57:26+00:00"}]
---

# Oracle WebCenter Portal: Runtime Tools flaw allows unauthenticated data changes over HTTP

An unauthenticated remote attacker can reach a flaw in the Runtime Tools component of Oracle WebCenter Portal over HTTP. Successful exploitation can modify or delete critical data and partially disrupt the portal, but it needs a difficult attack condition and a second person's interaction.

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

## How to check

- Identify whether `Oracle WebCenter Portal` is deployed and check its version against `12.2.1.4.0` and `14.1.2.0.0`
- unknown

## Fix

- Apply the Oracle Critical Patch Update fix for Oracle WebCenter Portal listed in the Oracle advisory
- unknown

## Timeline

- 2026-10-23T21:57:26+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-91247

## From the sources

Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Runtime Tools).  Supported versions that are affected are 12.2.1.4.0 and  14.1.2.0.0. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebCenter Portal.  Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in  unauthorized creation, deletion or modification access to critical data or all Oracle WebCenter Portal accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle WebCenter Portal. CVSS 3.1 Base Score 5.9 (Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:L).

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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_