Copyright © 2012 Red Hat, Inc. All rights reserved. Moderate 2026-08-05T14:12:12 openshift/oauth-proxy: openshift/oauth-proxy: unauthenticated identity header injection on whitelisted paths 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N CWE-345

A flaw was found in openshift/oauth-proxy. On paths configured to bypass authentication (skip-auth-regex), the proxy forwards client-supplied identity headers (X-Forwarded-User, X-Forwarded-Email, X-Forwarded-Access-Token) to the upstream application without stripping them. An unauthenticated attacker can inject forged identity headers on whitelisted paths.

A flaw was found in openshift/oauth-proxy. On paths configured to bypass authentication (skip-auth-regex), the proxy forwards client-supplied identity headers (X-Forwarded-User, X-Forwarded-Email, X-Forwarded-Access-Token) to the upstream application without stripping them. An unauthenticated attacker can inject forged identity headers on whitelisted paths.

This issue was discovered by Jeremy Choi (Red Hat). Review and minimize skip-auth-regex configurations. Add middleware in upstream applications to ignore X-Forwarded-User on unauthenticated paths. Red Hat OpenShift Container Platform 4 Fix deferred openshift4/ose-oauth-proxy Red Hat OpenShift Container Platform 4 Fix deferred openshift4/ose-oauth-proxy-rhel9 https://www.cve.org/CVERecord?id=CVE-2026-49331 https://nvd.nist.gov/vuln/detail/CVE-2026-49331