CVE-2026-44516: Valtimo has sensitive data exposure through HTTP request/response logging in LoggingRestClientCustomizer

The LoggingRestClientCustomizer in the web module automatically intercepts all outgoing HTTP calls made via Spring’s RestClient and logs the full request body, response body, and response headers. When an error response is received, this information is included in the thrown HttpClientErrorException message, which is logged at ERROR level by Spring’s default exception handling — regardless of the application’s DEBUG log level setting.