PT-2026-65454 · Red Hat · Red Hat Openshift Container Platform 4

Jeremy Choi · CVE-2026-49332 · Published 2026-07-28 · Updated 2026-07-28

Mitre

CVSS v3.1

8.5

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

A flaw was found in openshift/oauth-proxy. The proxy sets authenticated identity headers using only dash-variant keys (X-Forwarded-User) but does not strip underscore-variant keys (X Forwarded User) from incoming requests. WSGI and PHP frameworks normalize both variants to the same variable, allowing an authenticated low-privilege user to smuggle a forged identity that may override the legitimate authenticated identity in the upstream application.

Fix

Weakness Enumeration

CWE-436

Related Identifiers

CVE-2026-49332

Affected Products

Red Hat Openshift Container Platform 4

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-49332 · Security Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2483253 · Note
• https://access.redhat.com/security/cve/CVE-2026-49332 · Note