CVE-2026-19833 · Infrastructure
NO FIX YET · SEE WHAT TO DO
Synology DiskStation Manager has a missing authorization check in its ACL API. A remote user who already has an account can read or write specific files they should not reach.
first public Nov 12, 2026 · 1 source
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Only DSM installs that allow remote login by accounts that are not fully trusted are at real risk. Admins should look at which accounts can sign in remotely and update DSM on both the 7.3 and 7.4 branches.
Not affected if no-remote-accounts, patched-dsm
Who cares dsm, nas, self-hosted, synology
7.3.2-86009-5 or 7.4.1-90080-1 and later are patched7.3.2-86009-5 on the 7.3 branch7.4.1-90080-1 on the 7.4 branchA missing authorization vulnerability in the ACL API 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 specific files.
This page as .md · .json · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
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