Authentication bypass by capture-replay in Siemens Mendix SAML
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 · CISA ADP. Fix status from CNA. Impact type from CWE-294.
Summary
A vulnerability has been identified in Mendix SAML (Mendix 7 compatible) (All versions < V1.17.0), Mendix SAML (Mendix 7 compatible) (All versions >= V1.17.0 < V1.17.2), Mendix SAML (Mendix 8 compatible) (All versions < V2.3.0), Mendix SAML (Mendix 8 compatible) (All versions >= V2.3.0 < V2.3.2), Mendix SAML (Mendix 9 compatible, New Track) (All versions < V3.3.1), Mendix SAML (Mendix 9 compatible, New Track) (All versions >= V3.3.1 < V3.3.5), Mendix SAML (Mendix 9 compatible, Upgrade Track) (All versions < V3.3.0), Mendix SAML (Mendix 9 compatible, Upgrade Track) (All versions >= V3.3.0 < V3.3.4). Affected versions of the module insufficiently protect from packet capture replay, only when the not recommended, non default configuration option `'Allow Idp Initiated Authentication'` is enabled. This CVE entry describes the incomplete fix for CVE-2022-37011 in a specific non default configuration.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Siemens | Mendix SAML (Mendix 7 compatible) | before V1.17.0 | V1.17.0 | Patch available | CNA |
| Siemens | Mendix SAML (Mendix 7 compatible) | All versions >= V1.17.0 < V1.17.2 | — | No fix listed | CNA |
| Siemens | Mendix SAML (Mendix 8 compatible) | before V2.3.0 | V2.3.0 | Patch available | CNA |
| Siemens | Mendix SAML (Mendix 8 compatible) | All versions >= V2.3.0 < V2.3.2 | — | No fix listed | CNA |
| Siemens | Mendix SAML (Mendix 9 compatible, New Track) | before V3.3.1 | V3.3.1 | Patch available | CNA |
| Siemens | Mendix SAML (Mendix 9 compatible, New Track) | All versions >= V3.3.1 < V3.3.5 | — | No fix listed | CNA |
| Siemens | Mendix SAML (Mendix 9 compatible, Upgrade Track) | before V3.3.0 | V3.3.0 | Patch available | CNA |
| Siemens | Mendix SAML (Mendix 9 compatible, Upgrade Track) | All versions >= V3.3.0 < V3.3.4 | — | No fix listed | CNA |
- Mendix SAML (Mendix 7 compatible) VendorSiemens Affected before V1.17.0 Fixed in V1.17.0 Patch available CNA
- Mendix SAML (Mendix 7 compatible) VendorSiemens Affected All versions >= V1.17.0 < V1.17.2 Fixed in — No fix listed CNA
- Mendix SAML (Mendix 8 compatible) VendorSiemens Affected before V2.3.0 Fixed in V2.3.0 Patch available CNA
- Mendix SAML (Mendix 8 compatible) VendorSiemens Affected All versions >= V2.3.0 < V2.3.2 Fixed in — No fix listed CNA
- Mendix SAML (Mendix 9 compatible, New Track) VendorSiemens Affected before V3.3.1 Fixed in V3.3.1 Patch available CNA
- Mendix SAML (Mendix 9 compatible, New Track) VendorSiemens Affected All versions >= V3.3.1 < V3.3.5 Fixed in — No fix listed CNA
- Mendix SAML (Mendix 9 compatible, Upgrade Track) VendorSiemens Affected before V3.3.0 Fixed in V3.3.0 Patch available CNA
- Mendix SAML (Mendix 9 compatible, Upgrade Track) VendorSiemens Affected All versions >= V3.3.0 < V3.3.4 Fixed in — No fix listed CNA
Remediation
- Fix · CNA Mendix SAML (Mendix 7 compatible) (Siemens) Fixed in V1.17.0
- Fix · CNA Mendix SAML (Mendix 8 compatible) (Siemens) Fixed in V2.3.0
- Fix · CNA Mendix SAML (Mendix 9 compatible, New Track) (Siemens) Fixed in V3.3.1
- Fix · CNA Mendix SAML (Mendix 9 compatible, Upgrade Track) (Siemens) Fixed in V3.3.0
Timeline
- 2026-10-02 Threatist record created from CVE-2022-44457
- 2026-10-03 Alias added: GHSA-r796-qqqw-vxrj
References
More Siemens vulnerabilities
- TI-2026-20057 Authentication bypass in Fortinet FortiWeb KEVCVSS 3.1CRITICAL 9.4
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2025-18911 Heap-based buffer overflow in Fortinet FortiSwitchManager KEVCVSS 3.1CRITICAL 9.8
- TI-2025-09686 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.8
- TI-2022-07142 Code injection in Spring Framework KEVCVSS 3.1CRITICAL 9.8
- TI-2021-19919 Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints KEVCVSS 3.1CRITICAL 10.0
Sources
- CVE-2022-44457 · CVE Program
- CVE-2022-44457 · NVD
- FIRST EPSS
- GHSA-r796-qqqw-vxrj · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences