Synology

CVE-2026-81557: An improper neutralization of input during web page generation vulnerability in the DSMNotify in Synology DiskStation Manager (DSM) before 7.3.2-86009-5 and 7.4

CVE-2026-81557 Nov 12, 2026 Source: Vendor

An improper neutralization of input during web page generation vulnerability in the DSMNotify 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.

Source of record The credited names below are quoted verbatim from the vendor's own advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-81557

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Credited

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CVE-2026-81557 BR2026-0000-047689 unclaimed

Credited as Lubin Leclanche