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.
Siemens has released new versions for several affected products and recommends to update to the latest versions. Siemens is preparing further fix versions and recommends specific countermeasures for products where fixes are not, or not yet available.

https://cert-portal.siemens.com/productcert/html/ssa-726617.html