---
id: "CVE-2026-101495"
kind: "vulnerability"
aliases: ["CVE-2026-101495"]
title: "Oracle Siebel CRM: unauthenticated network flaw allows full takeover"
severity: "high"
cvss: 8.8
epss: null
exploited: false
status: "open"
category: "vendor"
products: []
ecosystems: []
tags: ["enterprise-crm", "oracle", "siebel-crm", "vendor"]
not_affected_if: ["version-outside-17.0-26.9"]
published_at: "2026-10-20T22:17:58+00:00"
first_seen_at: "2026-10-23T21:57:22+00:00"
updated_at: "2026-10-23T22:32:45+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101495", "first_seen_at": "2026-10-23T21:57:22+00:00"}]
---

# Oracle Siebel CRM: unauthenticated network flaw allows full takeover

Oracle Siebel CRM Development, in its Siebel Approval Manager component, has a flaw that lets an unauthenticated remote attacker over HTTP take over the product. Exploitation needs a person other than the attacker to take an action, such as opening a crafted page.

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

## How to check

Confirm whether Siebel CRM is deployed and which version runs, against the affected range 17.0-26.9 given in the NVD entry.

## Fix

Apply the patch from Oracle's Siebel CRM security advisory for your version; the specific patch identifier is unknown from the sources.

## Timeline

- 2026-10-23T21:57:22+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-101495

## From the sources

Vulnerability in the Siebel CRM Development product of Oracle Siebel CRM (component: Siebel Approval Manager).  Supported versions that are affected are 17.0-26.9. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel CRM Development.  Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in takeover of Siebel CRM Development. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).

---

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