High severity8.8NVD Advisory· Published Nov 12, 2026

CVE-2026-74857

Description

A missing critical step in authentication vulnerability in the Auth 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 arbitrary files and conduct denial-of-service attacks.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Synologyopensource/Dsminferred
Synology/Diskstation Managerllm-fuzzy
Range: <7.3.2-86009-5, <7.4.1-90080-1

Patches

Vulnerability mechanics

References

www.synology.com/en-global/security/advisory/Synology_SA_26_18nvd

News mentions

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