Description
A vulnerability has been identified in Mendix SAML (Mendix 10 compatible) (All versions < V4.2.3), Mendix SAML (Mendix 11 compatible) (All versions < V4.2.3), Mendix SAML (Mendix 9.24 compatible) (All versions < V3.6.27). Affected versions of the module do not properly validate the SAML response signature. This could allow unauthenticated remote attackers to hijack an account (session) in specific SSO configurations.
Published: 2026-09-03
Score: 8.8 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 03 Sep 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Thu, 03 Sep 2026 16:00:00 +0000

Type Values Removed Values Added
First Time appeared Siemens
Siemens mendix Saml (mendix 10 Compatible)
Siemens mendix Saml (mendix 11 Compatible)
Siemens mendix Saml (mendix 9.24 Compatible)
Vendors & Products Siemens
Siemens mendix Saml (mendix 10 Compatible)
Siemens mendix Saml (mendix 11 Compatible)
Siemens mendix Saml (mendix 9.24 Compatible)

Thu, 03 Sep 2026 13:00:00 +0000

Type Values Removed Values Added
Title Mendix SAML Module Fails to Validate SAML Response Signature, Allowing Session Hijacking

Thu, 03 Sep 2026 11:30:00 +0000

Type Values Removed Values Added
Description A vulnerability has been identified in Mendix SAML (Mendix 10 compatible) (All versions < V4.2.3), Mendix SAML (Mendix 11 compatible) (All versions < V4.2.3), Mendix SAML (Mendix 9.24 compatible) (All versions < V3.6.27). Affected versions of the module do not properly validate the SAML response signature. This could allow unauthenticated remote attackers to hijack an account (session) in specific SSO configurations.
Weaknesses CWE-347
References
Metrics cvssV3_1

{'score': 8.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N'}

cvssV4_0

{'score': 8.8, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N'}

Subscriptions

Siemens Mendix Saml (mendix 10 Compatible) Mendix Saml (mendix 11 Compatible) Mendix Saml (mendix 9.24 Compatible)
cve-icon MITRE

Status: PUBLISHED

Assigner: siemens

Published:

Updated: 2026-09-03T18:15:38.743Z

Reserved: 2026-08-26T12:49:28.232Z

Link: CVE-2026-80465

cve-icon Vulnrichment

Updated: 2026-09-03T18:15:33.754Z

cve-icon NVD

Status : Received

Published: 2026-09-03T13:06:10.877

Modified: 2026-09-03T19:17:29.117

Link: CVE-2026-80465

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-03T15:33:15Z

Weaknesses