---
id: "CVE-2026-101459"
kind: "vulnerability"
aliases: ["CVE-2026-101459"]
title: "Oracle Siebel CRM Deployment: low-privilege HTTP flaw exposes critical data"
severity: "high"
cvss: 8.3
epss: null
exploited: false
status: "open"
category: "vendor"
products: []
ecosystems: []
tags: ["enterprise-crm", "http", "oracle", "siebel-crm", "vendor"]
not_affected_if: ["not-deployed", "unsupported-version"]
published_at: "2026-10-20T22:17:54+00:00"
first_seen_at: "2026-10-23T21:57:21+00:00"
updated_at: "2026-10-25T03:02:24+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101459", "first_seen_at": "2026-10-23T21:57:21+00:00"}]
---

# Oracle Siebel CRM Deployment: low-privilege HTTP flaw exposes critical data

Oracle Siebel CRM Deployment's Server Infrastructure component has a flaw that lets a low-privileged user reach it over HTTP from the network. A successful attack can read, change or delete the CRM data the account can access, and can cause a partial denial of service.

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

## How to check

- Check the installed Siebel CRM Deployment version against the affected range 17.0-26.9 in the Oracle advisory
- unknown for any other check, the sources do not say

## Fix

- Apply the Oracle Siebel CRM patch for the affected release (version unknown in the sources)
- Check the Oracle Critical Patch Update advisory for the fixed build

## Timeline

- 2026-10-23T21:57:21+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-101459

## From the sources

Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure).  Supported versions that are affected are 17.0-26.9. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Siebel CRM Deployment.  Successful attacks of this vulnerability can result in  unauthorized creation, deletion or modification access to critical data or all Siebel CRM Deployment accessible data as well as  unauthorized access to critical data or complete access to all Siebel CRM Deployment accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Siebel CRM Deployment. CVSS 3.1 Base Score 8.3 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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_