CVE-2026-13635 Information disclosure in DiskStation Manager (DSM)
Remote attackers can obtain non-sensitive information via improper output encoding in the Auth API of Synology DSM.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-13635?
CVE-2026-13635 is a medium-severity vulnerability in Synology DiskStation Manager (DSM), published on 18 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An improper encoding or escaping of output vulnerability in Auth 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 attackers to obtain non-sensitive information.
Weakness: CWE-116
Which versions are affected by CVE-2026-13635?
How do I fix CVE-2026-13635?
No fix has been published for CVE-2026-13635 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-13635 being exploited?
There is no known exploitation of CVE-2026-13635 in the wild and no public exploit code.
Sources
Also known as GHSA-j6x3-5xfr-hc7h.