CVE-2025-40571 Missing authorization in Mendix OIDC SSO (Mendix 10.12 compatible)
An adversary can modify the module during development to gain unauthorized read and write access to all tokens, leading to privilege misuse.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-40571?
CVE-2025-40571 is a low-severity missing authorization vulnerability in Siemens Mendix OIDC SSO (Mendix 10.12 compatible), published on 13 May 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
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.
Weakness: CWE-266
Which versions are affected by CVE-2025-40571?
How do I fix CVE-2025-40571?
No fix has been published for CVE-2025-40571 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-40571 being exploited?
There is no known exploitation of CVE-2025-40571 in the wild and no public exploit code.
Sources
Also known as GHSA-8h7m-cr8f-h7x7.