Red Hat OpenShift Container Platform 4 (Openshift4/Ose-Oauth-Proxy-Rhel9)

A flaw in Red Hat OpenShift's oauth-proxy, tracked as CVE-2026-49332, allows an authenticated low-privilege user to smuggle a forged identity header by exploiting differences in how dash and underscore variants of 'X-Forwarded-User' are handled, potentially leading to privilege escalation in upstream applications.