CVE-2026-106076 PUBLISHED

Assigner: hackerone
Reserved: 06.10.2026 Published: 27.10.2026 Updated: 27.10.2026

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.

Metrics

CVSS 4.0

CVSS Vector: 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
CVSS Score: 9

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	High	Integrity	High
Attack Requirements	Present	Availability	High	Availability	High
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	Veeam
Product	Backup for Microsoft 365
Versions	Default: unaffected affected from 8.0 to 8.5.0.1014 (incl.)

References

https://www.veeam.com/kb4957

Problem Types

CWE-89 SQL Injection CWE