---
id: "CVE-2026-91365"
kind: "vulnerability"
aliases: ["CVE-2026-91365"]
title: "Oracle Siebel CRM Cloud: Cloud Manager flaw exposes data to adjacent-network attackers"
severity: "medium"
cvss: 5.9
epss: 0.00176
exploited: false
status: "open"
category: "vendor"
products: []
ecosystems: []
tags: ["cloud-manager", "oracle", "siebel-crm", "vendor"]
not_affected_if: ["no-adjacent-network-access", "not-siebel-cloud"]
published_at: "2026-10-20T22:20:39+00:00"
first_seen_at: "2026-10-23T21:57:26+00:00"
updated_at: "2026-10-25T12:38:52+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-91365", "first_seen_at": "2026-10-23T21:57:26+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-91365", "first_seen_at": "2026-10-25T12:38:52+00:00"}]
---

# Oracle Siebel CRM Cloud: Cloud Manager flaw exposes data to adjacent-network attackers

Oracle Siebel CRM Cloud Applications, component Siebel Cloud Manager, has a flaw in versions 22.3 through 26.9. An unauthenticated attacker on the physical network segment shared with the hardware can read critical data and modify or delete some accessible data.

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

## Timeline

- 2026-10-23T21:57:26+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-91365
- 2026-10-25T12:38:52+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-91365

## From the sources

Vulnerability in the Siebel CRM Cloud Applications product of Oracle Siebel CRM (component: Siebel Cloud Manager).  Supported versions that are affected are 22.3-26.9. Difficult to exploit vulnerability allows unauthenticated attacker with access to the physical communication segment attached to the hardware where the Siebel CRM Cloud Applications executes to compromise Siebel CRM Cloud Applications.  Successful attacks of this vulnerability can result in  unauthorized access to critical data or complete access to all Siebel CRM Cloud Applications accessible data as well as  unauthorized update, insert or delete access to some of Siebel CRM Cloud Applications accessible data. CVSS 3.1 Base Score 5.9 (Confidentiality and Integrity impacts).  CVSS Vector: (CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N).

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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_