CVE-2026-13672 · Infrastructure
NO FIX YET · SEE WHAT TO DO
An authorization bypass in the SSOAuth component of Synology DiskStation Manager lets a logged-in user read or write files they should not reach, and cause denial of service. The flaw is in how user-controlled keys are handled during SSO authentication.
first public Nov 12, 2026 · 1 source
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DiskStation Manager installations on versions before 7.3.2-86009-5 (7.3 branch) or before 7.4.1-90080-1 (7.4 branch). Exposure requires an authenticated DSM account; unknown whether SSOAuth must be enabled for the flaw to be reachable. Systems that are already on the fixed builds, or that have no user accounts that could be malicious, are less exposed.
Not affected if fixed-version, no-untrusted-accounts
Who cares dsm, nas, self-hosted, synology
7.3.2-86009-5 and 7.4.1-90080-17.3.2-86009-5 or later7.4.1-90080-1 or laterAn authorization bypass through user-controlled key vulnerability in the SSOAuth in Synology DiskStation Manager (DSM) before 7.3.2-86009-5 and 7.4.1-90080-1 allows remote authenticated users to read or write arbitrary files and conduct denial-of-service attacks.
This page as .md · .json · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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