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.
Published:Jul 28, 2026
Last Modified:Sep 3, 2026
EPS:Jul 28, 2026
EPSS Score:0.0029
CVSS Score:8.5
Affected Products
Vendor
Product
Action
Vendor
Redhat
Product
Openshift
Redhat
Openshift
Vendor
Redhat
Product
Openshift Container Platform
Redhat
Openshift Container Platform
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
References
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
