SQL Injection Vulnerability in Synology DiskStation Manager
CVE-2026-81584

8.1HIGH

Key Information:

Vendor

Synology
Status
Diskstation Manager (dsm)
Vendor
CVE Published:
12 November 2026

What is CVE-2026-81584?

An improper neutralization of special elements used in an SQL command in the User API of Synology DiskStation Manager prior to versions 7.3.2-86009-5 and 7.4.1-90080-1 exposes users to significant security risks. Attackers controlling a compromised LDAP or Active Directory server can exploit this vulnerability to read or manipulate arbitrary files, leading to unauthorized access and potential denial-of-service attacks. Immediate action is recommended to mitigate these risks.

Affected Version(s)

DiskStation Manager (DSM) 7.4.1

DiskStation Manager (DSM) 7.4.1 < 7.4.1-90080-1

DiskStation Manager (DSM) 7.3.2 < 7.3.2-86009-5

References

https://www.synology.com/en-global/security/advisory/Syno...

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Matúš Mandzák
.