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