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M-Files Server Information Disclosure Vulnerability Advisory

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Published April 1st, 2026
Detected April 2nd, 2026
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Summary

CERT-Bund issued a security advisory (WID-SEC-2026-0956) regarding an information disclosure vulnerability in M-Files Server. The vulnerability affects versions prior to 26.3.15818.5 on Windows platforms and carries a CVSS Base Score of 6.5 (medium severity). Remote anonymous attackers can exploit this flaw to disclose sensitive information.

What changed

CERT-Bund published a security advisory identifying an information disclosure vulnerability in M-Files Server, an enterprise information management platform. The flaw (affecting versions below 26.3.15818.5) allows remote anonymous attackers to exploit the system and expose information. The CVSS Base Score is 6.5 (medium) with a Temporal Score of 5.7. Mitigation measures are available.

Organizations running affected M-Files Server installations on Windows should immediately apply the available patch (version 26.3.15818.5 or later) to remediate the vulnerability. If immediate patching is not feasible, appropriate mitigation measures should be implemented. IT security teams should monitor for signs of exploitation and review access controls.

What to do next

  1. Update M-Files Server to version 26.3.15818.5 or later
  2. If immediate update is not possible, implement available mitigation measures
  3. Monitor systems for signs of unauthorized information access

Source document (simplified)

[WID-SEC-2026-0956] M-Files M-Files Server: Schwachstelle ermöglicht Offenlegung von Informationen CVSS Base Score 6.5 (mittel) CVSS Temporal Score 5.7 (mittel) Remoteangriff ja Datum 01.04.2026 Stand 02.04.2026 Mitigation ja

Betroffene Systeme

Betriebssystem

  • Windows

Produktbeschreibung

M-Files ist eine Plattform zur Verwaltung von Unternehmensinformationen.

Produkte

01.04.2026
- M-Files M-Files Server <26.3.15818.5

Angriff

Angriff

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in M-Files M-Files Server ausnutzen, um Informationen offenzulegen. CVE Informationen Versionshistorie Feedback zum Advisory geben

Source

Analysis generated by AI. Source diff and links are from the original.

Classification

Agency
CERT-Bund
Published
April 1st, 2026
Instrument
Notice
Legal weight
Non-binding
Stage
Final
Change scope
Minor
Document ID
WID-SEC-2026-0956

Who this affects

Applies to
Technology companies Employers
Industry sector
5112 Software & Technology
Activity scope
IT Security Vulnerability Management
Threshold
M-Files Server < 26.3.15818.5 on Windows
Geographic scope
Germany DE

Taxonomy

Primary area
Cybersecurity
Operational domain
IT Security
Topics
Data Privacy Technology companies

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