VULNERABILITY INTELLIGENCE
CVE-2026-49332
CVSS score8.5 HIGH
EPSS probability0.53%
CISA KEVNot currently listed
Published2026-07-28
Last modified2026-10-24
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Description
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.
Weakness classification
- secalert@redhat.com: CWE-436