Description
A vulnerability has been identified in Mendix Runtime V10 (All versions < V10.17.0 only if the basic authentication mechanism is used by the application), Mendix Runtime V10.12 (All versions < V10.12.11 only if the basic authentication mechanism is used by the application), Mendix Runtime V10.6 (All versions < V10.6.19 only if the basic authentication mechanism is used by the application), Mendix Runtime V8 (All versions < V8.18.33 only if the basic authentication mechanism is used by the application), Mendix Runtime V9 (All versions < V9.24.31 only if the basic authentication mechanism is used by the application). The authentication mechanism of affected applications contains an observable response discrepancy vulnerability when validating usernames. This could allow unauthenticated remote attackers to distinguish between valid and invalid usernames.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Siemens | Mendix Runtime V10 | < V10.17.0 | V10.17.0 |
| Siemens | Mendix Runtime V10.12 | < V10.12.11 | V10.12.11 |
| Siemens | Mendix Runtime V10.6 | < V10.6.19 | V10.6.19 |
| Siemens | Mendix Runtime V8 | < V8.18.33 | V8.18.33 |
| Siemens | Mendix Runtime V9 | < V9.24.31 | V9.24.31 |
Advisories 3
- ICSA-24-256-05 Siemens Mendix Runtime CISA ICS & IT advisories · Aug 12, 2025
- SSA-097435 SSA-097435: Usernames Disclosure Vulnerability in Mendix Runtime Siemens ProductCERT · Aug 12, 2025
- NCSC-2024-0362 Kwetsbaarheden verholpen in Siemens producten NCSC-NL (Netherlands) · Sep 10, 2024