Description
A vulnerability has been identified in Mendix SAML (Mendix 10.12 compatible) (All versions < V4.0.3), Mendix SAML (Mendix 10.21 compatible) (All versions < V4.1.2), Mendix SAML (Mendix 9.24 compatible) (All versions < V3.6.21). Affected versions of the module insufficiently enforce signature validation and binding checks. This could allow unauthenticated remote attackers to hijack an account in specific SSO configurations.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Siemens | Mendix SAML (Mendix 10.12 compatible) | < V4.0.3 | V4.0.3 |
| Siemens | Mendix SAML (Mendix 10.21 compatible) | < V4.1.2 | V4.1.2 |
| Siemens | Mendix SAML (Mendix 9.24 compatible) | < V3.6.21 | V3.6.21 |
Advisories 1
- SSA-395458 SSA-395458: Account Hijacking Vulnerability in Mendix SAML Module Siemens ProductCERT · Aug 14, 2025