CRLF injection in DiskStation Manager (DSM) - CVE-2026-13666
Published: September 20, 2026
Vulnerability identifier: #VU151485
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-13666
CWE-ID: CWE-93
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to write limited files.
The vulnerability exists due to improper neutralization of CRLF sequences in Sharing API when handling sharing URLs. A remote user can exploit the vulnerability to write limited files.
A victim must click a sharing URL.
Affected software
DiskStation Manager (DSM)
How to mitigate CVE-2026-13666
Install security update from vendor's website.
DiskStation Manager (DSM) - addressed in versions 7.2.1-69057-12, 7.2.2-72806-9, 7.3.2-86009-4, 7.4-90075