CVE-2026-19833 PUBLISHED

Assigner: synology
Reserved: 14.08.2026 Published: 12.11.2026 Updated: 12.11.2026

A missing authorization vulnerability in the ACL API in Synology DiskStation Manager (DSM) before 7.3.2-86009-5 and 7.4.1-90080-1 allows remote authenticated users to read or write specific files.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CVSS Score: 5.4

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	Low	Integrity Impact	Low
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	Synology
Product	DiskStation Manager (DSM)
Versions	Default: affected affected from 7.4.1 to 7.4.1-90080-1 (excl.) affected from 7.3.2 to 7.3.2-86009-5 (excl.) unknown from 0 to 7.3.2 (excl.)

Credits

Warisse Valentin (Aytio) finder

References

Synology-SA-26:18 DSM

Problem Types

Missing Authorization CWE