# CVE-2026-13656: Synology DiskStation Manager improper input neutralization in Audio Player

Source: https://junglewise.ai/threats/cve-2026-13656-an-improper-neutralization-of-input-during-web-page-generation  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-12. Updated: 2026-11-12  
License: CC BY 4.0 with a link back

CVE-2026-13656 · Severity: medium · CVSS 5.4 · Published 2026-11-12

Synology DiskStation Manager (DSM) is a management operating system for network-attached storage devices. A flaw in the Audio Player component allows authenticated users to read or write files on the storage device, potentially exposing sensitive data or enabling malicious file modifications.

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-2026-13656 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-13656 being exploited in the wild.

**How severe is CVE-2026-13656?** Medium severity, with a CVSS score of 5.4, published 12 November 2026.

**Which products and versions are affected?** Synology DiskStation Manager (DSM) before 7.3.2-86009-5 and 7.4.1-90080-1.

**Is there a fix for CVE-2026-13656?** Yes: fixed in DSM 7.3.2-86009-5, 7.4.1-90080-1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-13656 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-13656?** 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.

## How to fix

- Fixed in DSM 7.3.2-86009-5, 7.4.1-90080-1

## Technical details

An improper neutralization of input during web page generation (cross-site scripting or template injection) vulnerability in the Audio Player component of DSM allows remote authenticated users to achieve arbitrary file read/write access. The vulnerability requires valid user credentials to exploit and does not require administrative privilege escalation. A patch is available in DSM 7.3.2-86009-5 and 7.4.1-90080-1.

## Affected products

- Synology DiskStation Manager (DSM) before 7.3.2-86009-5 and 7.4.1-90080-1

## Timeline

- 2026-11-12: disclosed

## References

- [https://www.synology.com/en-global/security/advisory/Synology_SA_26_18](https://www.synology.com/en-global/security/advisory/Synology_SA_26_18)

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