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CVE-2026-49332: Interpretation Conflict in Red Hat Red Hat OpenShift Container Platform 4

0
High
VulnerabilityCVE-2026-49332cvecve-2026-49332
Published: 07/28/2026 (07/28/2026, 12:18:26 UTC)
Source: CVE Database V5
Vendor/Project: Red Hat
Product: Red Hat OpenShift Container Platform 4

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.

CVSS v3.1

Score 8.5high

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
Low
Availability
None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

Technical Details

Data Version
5.2
Assigner Short Name
redhat
Date Reserved
2026-05-29T13:28:56.553Z
Cvss Version
3.1
State
PUBLISHED
Remediation Level
null
Vendor Advisory Urls
[{"url":"https://access.redhat.com/security/cve/CVE-2026-49332","vendor":"Red Hat"}]

Threat ID: 6a68a2979c2644c7f89d5d1a

Added to database: 07/28/2026, 12:37:43 UTC

Last updated: 07/28/2026, 12:37:43 UTC

Views: 1

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