Missing brute-force protection in M-Files Server
Priority MEDIUM 44CWE-307Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-307.
Summary
Lack of rate limiting in M-Files Server and M-Files Web products with versions before 21.12.10873.0 in certain type of user accounts allows unlimited amount of attempts and therefore makes brute-forcing login accounts easier.
Why it matters now
EPSS 0.01106 66th percentileScored 2026-11-07
Fix Fixed M-Files Server (M-Files): 21.12.10873.0M-Files Web (M-Files): 21.12.10873.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| M-Files Corporation | M-Files Server | Online to before 21.12.10873.0; 2018 to before 21.12.10873.0 | 21.12.10873.0 | Patch available | CNA |
| M-Files Corporation | M-Files Web | Classic to before 21.12.10873.0; vNext to before 21.12.10873.0 | 21.12.10873.0 | Patch available | CNA |
- M-Files Server VendorM-Files Corporation Affected Online to before 21.12.10873.0; 2018 to before 21.12.10873.0 Fixed in 21.12.10873.0 Patch available CNA
- M-Files Web VendorM-Files Corporation Affected Classic to before 21.12.10873.0; vNext to before 21.12.10873.0 Fixed in 21.12.10873.0 Patch available CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:m-files:m-files_server:*:*:*:*:*:*:*:* | before 21.12.10873.0 | Vulnerable | M-Files Corporation |
| cpe:2.3:a:m-files:m-files_web:*:*:*:*:*:*:*:* | before 21.12.10873.0 | Vulnerable | M-Files Corporation |
- cpe:2.3:a:m-files:m-files_server:*:*:*:*:*:*:*:* Versions before 21.12.10873.0 Vulnerable ·M-Files Corporation
- cpe:2.3:a:m-files:m-files_web:*:*:*:*:*:*:*:* Versions before 21.12.10873.0 Vulnerable ·M-Files Corporation
Remediation
- Fix · CNA M-Files Server (M-Files) Fixed in 21.12.10873.0
- Fix · CNA M-Files Web (M-Files) Fixed in 21.12.10873.0
Timeline
- 2026-10-02 Threatist record created from CVE-2021-41807
- 2026-10-03 Alias added: GHSA-5c8j-7c6c-838x
References
More M-Files Corporation M-files Server vulnerabilities
- TI-2025-05387 Path traversal in M-Files API CVSS 4.0HIGH 8.4
- TI-2024-09388 Support for authentication bypass condition in M-Files LDAP authentication CVSS 4.0CRITICAL 9.2
- TI-2023-06317 Brute force vulnerability in M-Files user authentication CVSS 3.1CRITICAL 9.8
- TI-2024-03776 Regular expression denial of service in M-Files Server CVSS 3.1HIGH 7.5
- TI-2023-03183 Denial of service condition in M-Files Server CVSS 3.1HIGH 7.5
- TI-2023-00367 Uncontrolled Resource Consuption in M-Files Server CVSS 3.1HIGH 7.5
Sources
- CVE-2021-41807 · CVE Program
- CVE-2021-41807 · NVD
- FIRST EPSS
- GHSA-5c8j-7c6c-838x · GitHub Advisory Database · CC BY 4.0
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