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Vendor Workaround
Upstream application hardening: validate X-Forwarded-User against the expected session identity. Reject requests where identity headers do not match the authenticated session.
Tracking
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Wed, 12 Aug 2026 21:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/a:redhat:openshift:4.16::el9 | |
| References |
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Wed, 12 Aug 2026 15:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/a:redhat:openshift:4.14::el9 | |
| References |
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Wed, 12 Aug 2026 08:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/a:redhat:openshift:4.18::el9 cpe:/a:redhat:openshift:4.19::el9 |
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| References |
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Tue, 11 Aug 2026 10:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/a:redhat:openshift:4.20::el9 cpe:/a:redhat:openshift:4.22::el9 |
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| References |
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Tue, 11 Aug 2026 09:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/a:redhat:openshift:4.21::el9 | |
| References |
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Wed, 05 Aug 2026 10:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Redhat openshift Container Platform
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| Vendors & Products |
Redhat openshift Container Platform
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Wed, 29 Jul 2026 00:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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| Metrics |
threat_severity
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threat_severity
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Tue, 28 Jul 2026 16:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Openshift/oauth-proxy: openshift/oauth-proxy: underscore header smuggling enables identity impersonation on wsgi/php upstreams | |
| First Time appeared |
Redhat
Redhat openshift |
|
| Weaknesses | CWE-436 | |
| CPEs | cpe:/a:redhat:openshift:4 | |
| Vendors & Products |
Redhat
Redhat openshift |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-08-12T20:52:11.879Z
Reserved: 2026-05-29T13:28:56.553Z
Link: CVE-2026-49332
Updated: 2026-07-28T13:03:03.200Z
Status : Awaiting Analysis
Published: 2026-07-28T13:18:46.067
Modified: 2026-08-12T21:17:38.767
Link: CVE-2026-49332
OpenCVE Enrichment
Updated: 2026-08-05T10:00:03Z