CVE-2026-13666: CRLF Injection
Published Sep 18, 2026
·Updated
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.
Affected Software
1 affected component
Synology DiskStation Manager (DSM)<7.2.1-69057-12, <7.2.2-72806-9, <7.3.2-86009-4, <7.4-90075
Event History
Sep 18, 2026
CVE Published
via MITRE·08:22 AM
Data Sourced
via MITRE·08:22 AM
DescriptionSeverityWeakness
Frequently Asked Questions
1
Who can exploit this issue?
A remote attacker must be authenticated to DSM and must be able to get a victim to click a sharing URL. The vulnerability affects the Sharing API.
2
What impact can exploitation have?
Successful exploitation allows limited file writes. The provided severity vector indicates no confidentiality impact and no availability impact, with low integrity impact.
3
Which DSM versions need remediation?
Affected versions are DSM releases before 7.2.1-69057-12, 7.2.2-72806-9, 7.3.2-86009-4, and 7.4-90075.