---
id: CVE-2026-106076
title: >-
  A vulnerability allowing an authenticated organization-transfer peer to inject
  SQL into the configuration database of the source Veeam Backup for Microsoft
  365 server, leading to cross-tenant read and write of configuration data and
  remo…
summary: >-
  A vulnerability allowing an authenticated organization-transfer peer to inject
  SQL into the configuration database of the source Veeam Backup for Microsoft
  365 server, leading to cross-tenant read and write of configuration data and
  remo…
severity: critical
cvss: 9
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'
cvssSource: cna
cwe:
  - CWE-89
vendor: Veeam
product: Backup for Microsoft 365
affected:
  - backup_for_microsoft_365 >= 8.0 <= 8.5.0.1014
published: '2026-10-27'
updated: '2026-10-27'
sourceUpdated: '2026-10-27T16:16:58.882Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-106076'
references:
  - url: 'https://www.veeam.com/kb4957'
tags:
  - cve.org
ingestedAt: '2026-10-27T16:32:34.393Z'
---

## Overview

A vulnerability allowing an authenticated organization-transfer peer to inject SQL into the configuration database of the source Veeam Backup for Microsoft 365 server, leading to cross-tenant read and write of configuration data and remote code execution as the PostgreSQL service account.

## Affected

- `backup_for_microsoft_365 >= 8.0 <= 8.5.0.1014`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.