CVE-2026-0983 Denial of service vulnerability in M-Files Server
An authenticated user can crash the M-Files Server process, causing a denial of service for the document management system.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-0983?
CVE-2026-0983 is a high-severity denial of service vulnerability in M-Files Server, published on 18 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Denial-of-service condition in M-Files Server versions before 26.5.16015.0, before 26.2 LTS, and before 25.8 LTS SR3 allows an authenticated user to cause the MFserver process to crash
Weakness: CWE-1286
Which versions are affected by CVE-2026-0983?
How do I fix CVE-2026-0983?
No fix has been published for CVE-2026-0983 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-0983 being exploited?
There is no known exploitation of CVE-2026-0983 in the wild and no public exploit code.
Sources
Also known as GHSA-x6cg-7p5m-7wcc.