Vulnerability in Synology Diskstation Manager (Dsm)
CVE-2026-13666
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.
Vulnerability class: CRLF Injection
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N.
Affected products
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-13666?
- CVE-2026-13666 is a low-severity vulnerability in Synology Diskstation Manager (Dsm), classified under CRLF Injection. CVSS score: 3.5/10. Published 2026-09-18.
- How severe is CVE-2026-13666?
- Low severity. CVSS v3 base score is 3.5 out of 10.