Synology DiskStation Manager: Sharing API Path Traversal (CVE-2026-18792)
CVE-2026-18792 is a path traversal vulnerability in the Sharing API of Synology DiskStation Manager (DSM) that allows remote authenticated users to read or write arbitrary files and conduct denial-of-service attacks.
CVE search metadata
CVE search record: CVE-2026-18792. Severity: high. CVSS: 8.8. KEV: no. Product: DiskStation Manager (DSM, < 7.3.2-86009-5, < 7.4.1-90080-1). Brief: Synology DiskStation Manager: Sharing API Path Traversal (CVE-2026-18792). Brief link: https://feed.craftedsignal.io/briefs/2026-11-synology-dsm-sharing-api-path-traversal-cve-2026-18792/
Triage facts
Revision 1- Applicability
- DiskStation Manager (DSM, < 7.3.2-86009-5, < 7.4.1-90080-1)
- Evidence
- Unknown
- Severity
- High
- Sources
- 1 public source
- Freshness
- Revision 1Nov 12, 09:30 UTC
- Vulnerabilities
- 1 CVE
- Source quality
- A2Roughly even chance
CVE-2026-18792 is an improper limitation of a pathname to a restricted directory vulnerability in the Sharing API of Synology DiskStation Manager (DSM).
Impact
This vulnerability allows remote authenticated users to read or write arbitrary files and conduct denial-of-service attacks.
Recommendation
Monitor for updates or security guidance from the vendor regarding this vulnerability.