CVE-2026-77738 · Infrastructure
NO FIX YET · SEE WHAT TO DO
A server-side request forgery flaw in the Credential API of Synology DiskStation Manager lets a signed-in user make the server fetch resources and read specific files. The attacker needs a valid account on the NAS.
first public Nov 12, 2026 · 1 source
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Only DiskStation Manager versions before 7.3.2-86009-5 and 7.4.1-90080-1 are named by the sources. The attacker needs an authenticated DSM account, so systems where only trusted staff have logins carry less risk. Teams running Synology NAS devices with shared or external user accounts should prioritise updating.
Not affected if auth-required, no-untrusted-accounts
Who cares dsm, nas, self-hosted, synology
7.3.2-86009-5 and 7.4.1-90080-1.7.3.2-86009-5 or later.7.4.1-90080-1 or later.A server-side request forgery vulnerability in the Credential API in Synology DiskStation Manager (DSM) before 7.3.2-86009-5 and 7.4.1-90080-1 allows remote authenticated users to read specific files.
This page as .md · .json · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
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