---
id: "CVE-2026-101406"
kind: "vulnerability"
aliases: ["CVE-2026-101406"]
title: "Oracle Siebel Marketing: unauthenticated read of a subset of data"
severity: "low"
cvss: 3.7
epss: null
exploited: false
status: "open"
category: "vendor"
products: []
ecosystems: []
tags: ["on-prem", "oracle-crm", "siebel", "vendor"]
not_affected_if: ["siebel-marketing-not-installed"]
published_at: "2026-10-20T22:17:48+00:00"
first_seen_at: "2026-10-23T21:57:21+00:00"
updated_at: "2026-10-25T04:44:00+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101406", "first_seen_at": "2026-10-23T21:57:21+00:00"}]
---

# Oracle Siebel Marketing: unauthenticated read of a subset of data

Oracle Siebel CRM's Marketing module, versions 17.0 through 26.9, has a flaw reachable over HTTP without a login. A hard-to-exploit attack can read a subset of the data the module holds.

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

## How to check

- Check the installed Siebel Apps - Marketing version against the affected range 17.0-26.9 in the Oracle Critical Patch Update advisory
- unknown for other checks: the sources do not say which configuration or endpoint is exposed

## Fix

- Apply the Oracle Critical Patch Update for Siebel CRM that covers Siebel Apps - Marketing; the sources do not name the fixed version
- unknown for interim mitigations: the sources do not say

## Timeline

- 2026-10-23T21:57:21+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-101406

## 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. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel Apps - Marketing.  Successful attacks of this vulnerability can result in  unauthorized read access to a subset of Siebel Apps - Marketing accessible data. CVSS 3.1 Base Score 3.7 (Confidentiality impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/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_