Synology DiskStation Manager: Authorization Bypass in SSOAuth
An authorization bypass vulnerability in the SSOAuth component of Synology DiskStation Manager (DSM) allows remote authenticated users to read or write arbitrary files and conduct denial-of-service attacks.
CVE search metadata
CVE search record: CVE-2026-13672. Severity: high. CVSS: 8.8. KEV: no. Product: DiskStation Manager (< 7.3.2-86009-5, < 7.4.1-90080-1). Brief: Synology DiskStation Manager: Authorization Bypass in SSOAuth. Brief link: https://feed.craftedsignal.io/briefs/2026-11-synology-dsm-ssoauth-cve-2026-13672/
Triage facts
Revision 1- Applicability
- DiskStation Manager (< 7.3.2-86009-5, < 7.4.1-90080-1)
- Evidence
- Unknown
- Severity
- High
- Sources
- 1 public source
- Freshness
- Revision 1Nov 12, 09:30 UTC
- Vulnerabilities
- 1 CVE
- Source quality
- A2Roughly even chance
CVE-2026-13672 is an authorization bypass vulnerability in the SSOAuth component of Synology DiskStation Manager (DSM). The flaw, which has a CVSS v3.1 base score of 8.8, involves a user-controlled key vulnerability that allows remote authenticated users to read or write arbitrary files and perform denial-of-service attacks on the affected device.