SYNOLOGY DISKSTATION MANAGER (DSM) · CVE-2026-87801 · Infrastructure
NO FIX YET · SEE WHAT TO DO
An insertion of sensitive information into sent data flaw in the API framework of Synology DiskStation Manager lets a remote user with an account read arbitrary files on the NAS. The NVD entry rates it medium with a CVSS score of 6.5.
first public Nov 12, 2026 · 1 source
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Synology DiskStation Manager installs older than the fixed builds are affected, and the attacker needs a valid DSM user account first. Teams that run no Synology NAS, or whose DSM is on a fixed build, can skip it. Sources do not say whether any non-default setting is required.
Not affected if no-synology-nas, patched-dsm
Who cares dsm, nas, self-hosted, synology
7.3.2-86009-5 or later7.4.1-90080-1 or laterAn insertion of sensitive information into sent data vulnerability in the API framework in Synology DiskStation Manager (DSM) before 7.3.2-86009-5 and 7.4.1-90080-1 allows remote authenticated users to read arbitrary files.
This page as .md · .json · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.
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