# CVE-2026-4036: Synology DiskStation Manager SQL injection in Sharing API

Source: https://junglewise.ai/threats/cve-2026-4036-synology-diskstation-manager-sql-injection-in-sharing-api  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-18. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-4036 · Severity: medium · CVSS 6.5 · Published 2026-09-18

Synology DiskStation Manager (DSM) is a network-attached storage operating system widely used in organizations for data storage and backup. A SQL injection flaw in the Sharing API allows authenticated users to extract arbitrary files shared on the system, potentially exposing sensitive documents, photos, and other data stored on affected devices without requiring user interaction or special privileges.

Technologies: [Synology DiskStation Manager (DSM)](https://junglewise.ai/threats/technologies/diskstation-manager-dsm). Vendors: [Synology](https://junglewise.ai/threats/vendors/synology).

## Quick answers

**Is CVE-2026-4036 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-4036 being exploited in the wild.

**How severe is CVE-2026-4036?** Medium severity, with a CVSS score of 6.5, published 18 September 2026.

**Which products and versions are affected?** Synology DiskStation Manager (DSM) before 7.2.1-69057-10, 7.2.2-72806-7, and 7.3.2-86009-2.

**Is there a fix for CVE-2026-4036?** A patch was published on 2026-09-18. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-4036 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-4036?** Check whether you run Synology DiskStation Manager (DSM) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A SQL injection (CWE-89) vulnerability exists in the Sharing API component of Synology DSM due to improper neutralization of special characters in SQL commands. The vulnerability is network-accessible and requires authenticated access (PR:L), but no user interaction is needed. An attacker with valid credentials can craft malicious SQL queries through the Sharing API to read arbitrary shared files from the system. The flaw affects DSM versions before 7.2.1-69057-10, 7.2.2-72806-7, and 7.3.2-86009-2, all of which have received patches addressing this issue.

## Affected products

- Synology DiskStation Manager (DSM) before 7.2.1-69057-10, 7.2.2-72806-7, and 7.3.2-86009-2

## Timeline

- 2026-04-15: disclosed
- 2026-09-18: patched

## References

- [https://www.synology.com/en-global/security/advisory/Synology_SA_26_06](https://www.synology.com/en-global/security/advisory/Synology_SA_26_06)

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