---
id: "CVE-2026-101392"
kind: "vulnerability"
aliases: ["CVE-2026-101392"]
title: "Oracle Siebel Marketing: low-privilege user can read critical CRM data"
severity: "medium"
cvss: 5.5
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["enterprise", "oracle-crm", "package", "siebel"]
not_affected_if: ["unaffected-version"]
published_at: "2026-10-20T22:17:46+00:00"
first_seen_at: "2026-10-23T21:57:21+00:00"
updated_at: "2026-10-25T04:12:28+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101392", "first_seen_at": "2026-10-23T21:57:21+00:00"}]
---

# Oracle Siebel Marketing: low-privilege user can read critical CRM data

Oracle Siebel CRM's Marketing component has a flaw that lets a low-privileged logged-in user access data they should not see. Successful exploitation exposes critical data accessible to Siebel Marketing, with no change to integrity or availability.

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

## How to check

- Check whether Siebel Apps - Marketing is deployed and which version: unknown
- Confirm the installed version falls in the affected range 17.0-26.9 per the Oracle advisory: unknown

## Fix

- Apply the Oracle Critical Patch Update fix for Siebel Apps - Marketing: unknown

## Timeline

- 2026-10-23T21:57:21+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-101392

## From the sources

Vulnerability in the Siebel Apps - Marketing product of Oracle Siebel CRM (component: Marketing).  Supported versions that are affected are 17.0-26.9. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Siebel Apps - Marketing executes to compromise Siebel Apps - Marketing.  Successful attacks of this vulnerability can result in  unauthorized access to critical data or complete access to all Siebel Apps - Marketing accessible data. CVSS 3.1 Base Score 5.5 (Confidentiality impacts).  CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).

---

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