access.redhat.comvdb entry
https://access.redhat.com/security/cve/CVE-2026-49331 CVE-2026-49331
MEDIUM
Openshift/oauth-proxy: openshift/oauth-proxy: unauthenticated identity header injection on whitelisted paths
Record summary
CVE-2026-49331 has a selected CVSS score of 6.5 (medium).
Description
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.
Description source: CVE List
Exploitation context
CISA SSVC decision
ExploitationNone
AutomatableYes
Technical impactPartial
CISA Coordinator · SSVC 2.0.3 · Evaluated Aug 6, 2026 · Source: CVE List
Affected products and versions
2| Product | Source | Version range | Status |
|---|---|---|---|
Red Hat OpenShift Container Platform 4Browse Red Hat / Red Hat OpenShift Container Platform 4openshift4/ose-oauth-proxyDefault status: affected | CVE List | Version data not supplied | |
Red Hat OpenShift Container Platform 4Browse Red Hat / Red Hat OpenShift Container Platform 4openshift4/ose-oauth-proxy-rhel9Default status: affected | CVE List | Version data not supplied | |
References
3RHBZ#2483252issue tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2483252 nvd.nist.gov
https://nvd.nist.gov/vuln/detail/CVE-2026-49331