CVE-2026-49332

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.

Score
CVSS 3.1 8.5 High
Status
Awaiting Analysis - secalert@redhat.com
Published
2026-07-28
Last modified
2026-10-24
Weaknesses
CWE-436

Affected products

References

 
 
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