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.
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'}


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