Vulnerabilities

A vulnerability has been identified in Mendix SAML (Mendix 10 compatible) (All versions < V4.2.4), Mendix SAML (Mendix 11 compatible) (All versions <…

A vulnerability has been identified in Mendix SAML (Mendix 10 compatible) (All versions < V4.2.4), Mendix SAML (Mendix 11 compatible) (All versions < V4.2.4), Mendix SAML (Mendix 9 compatible) (All versions < V3.6.29). Affected versions of the module do not properly protect against SAML assertion replay in IdP-initiated authentication flows. This could allow unauthenticated remote attackers to gain unauthorized access to the application by replaying a valid SAML response.

Read at NIST National Vulnerability Database (CVE API 2.0)

Vendor

Siemens

Product

Mendix SAML (Mendix 10 compatible), Mendix SAML (Mendix 11 compatible), Mendix SAML (Mendix 9 compatible)

CVSS v3.1

6.8 AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Weakness

CWE-294

Exposure class

OT / ICS

NVD status

Received

• NIST National Vulnerability Database (CVE API 2.0) (nvd.nist.gov)
• CVE-2026-89209 on this site · NVD · CVE.org · Vulnpedia

Other items that share a CVE or were clustered with this one.

1. 32
   ICS advisory CISA ICS 2d ago

   Siemens Mendix SAML Module

   Fix available CVE-2026-89209 Siemens