CVE-2026-13666 — LOW (3.5) — White Hats Nepal

Vulnerability 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.

CVSS Score

3.5

LOW

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

NONE

Related Weaknesses (CWE)

CWE-93

References

https://www.synology.com/en-global/security/advisory/Synology_SA_26_13

FAQ

What is CVE-2026-13666?

CVE-2026-13666 is a vulnerability with a CVSS score of 3.5 (LOW). 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 all...

How severe is CVE-2026-13666?

CVE-2026-13666 has been rated LOW with a CVSS base score of 3.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-13666?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.