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TI-2025-27055 Aliases CVE-2025-40571GHSA-8h7m-cr8f-h7x7

A vulnerability has been identified in Mendix OIDC SSO (Mendix 10.12 compatible) (All…

Priority LOW 11CWE-266Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
High
Attack requirements
Present
Impact type
Privilege escalation
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-266.

Summary

A vulnerability has been identified in Mendix OIDC SSO (Mendix 10.12 compatible) (All versions < V4.0.1), Mendix OIDC SSO (Mendix 9 compatible) (All versions < V3.3.1), Mendix OIDC SSO V4.2 (Mendix 10 compatible) (All versions < V4.2.1), Mendix OIDC SSO V4.3 (Mendix 10 compatible) (All versions). The Mendix OIDC SSO module grants read and write access to all tokens exclusively to the Administrator role and could result in privilege misuse by an adversary modifying the module during Mendix development.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00281 20th percentileScored 2026-11-07
Fix Fixed Mendix OIDC SSO (Mendix 10.12 compatible) (Siemens): V4.0.1Mendix OIDC SSO (Mendix 9 compatible) (Siemens): V3.3.1+1 more product

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SiemensMendix OIDC SSO (Mendix 10.12 compatible)before V4.0.1V4.0.1Patch availableCNA
SiemensMendix OIDC SSO (Mendix 9 compatible)before V3.3.1V3.3.1Patch availableCNA
SiemensMendix OIDC SSO V4.2 (Mendix 10 compatible)before V4.2.1V4.2.1Patch availableCNA
SiemensMendix OIDC SSO V4.3 (Mendix 10 compatible)all versions—No fix listedCNA
  • Mendix OIDC SSO (Mendix 10.12 compatible) VendorSiemens Affected before V4.0.1 Fixed in V4.0.1 Patch available CNA
  • Mendix OIDC SSO (Mendix 9 compatible) VendorSiemens Affected before V3.3.1 Fixed in V3.3.1 Patch available CNA
  • Mendix OIDC SSO V4.2 (Mendix 10 compatible) VendorSiemens Affected before V4.2.1 Fixed in V4.2.1 Patch available CNA
  • Mendix OIDC SSO V4.3 (Mendix 10 compatible) VendorSiemens Affected all versions Fixed in — No fix listed CNA

Remediation

  • Fix · CNA Mendix OIDC SSO (Mendix 10.12 compatible) (Siemens) Fixed in V4.0.1
  • Fix · CNA Mendix OIDC SSO (Mendix 9 compatible) (Siemens) Fixed in V3.3.1
  • Fix · CNA Mendix OIDC SSO V4.2 (Mendix 10 compatible) (Siemens) Fixed in V4.2.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-40571
  2. 2026-10-03 Alias added: GHSA-8h7m-cr8f-h7x7

References

Other 1

  • 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
See all 2487 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences