CVE-2026-13666

Low

Description

An improper neutralization of CRLF sequences ('CRLF Injection') vulnerability in Sharing API in Synology DiskStation Manager (DSM) before 7.2.1-69057-12, 7.2.2-72806-9, 7.3.2-86009-4 and 7.4-90075 allows remote authenticated users to write limited files when a victim clicks a sharing URL.

SeverityLow
CVSS3.5
Exploit probability—
ProductDiskStation Manager (DSM)
PublishedSep 18, 2026
First seenSep 18, 2026
Weakness typeCWE-93CWE-93

How to fix

Update
  • Synology DiskStation Manager (DSM)7.4-90075, 7.3.2-86009-4, 7.2.2-72806-9, 7.2.1-69057-12 or later

Affected products

ProductAffected versionsFixed in
Synology DiskStation Manager (DSM)7.4 ≤ v < 7.4-90075, 7.3.2 ≤ v < 7.3.2-86009-4, 7.2.2 ≤ v < 7.2.2-72806-9, 7.2.1 ≤ v < 7.2.1-69057-127.4-90075, 7.3.2-86009-4, 7.2.2-72806-9, 7.2.1-69057-12

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