CVE-2026-49331

Openshift/oauth-proxy: openshift/oauth-proxy: unauthenticated identity header injection on whitelisted paths

Published Aug 5, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
A flaw was found in openshift/oauth-proxy. On paths configured to bypass authentication (skip-auth-regex), the proxy forwards client-supplied identity headers (X-Forwarded-User, X-Forwarded-Email, X-Forwarded-Access-Token) to the upstream application without stripping them. An unauthenticated attacker can inject forged identity headers on whitelisted paths.

Remediation

Vendor Workaround

Review and minimize skip-auth-regex configurations. Add middleware in upstream applications to ignore X-Forwarded-User on unauthenticated paths.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Redhat openshift Container Platform
Vendors & Products Redhat openshift Container Platform
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A flaw was found in openshift/oauth-proxy. On paths configured to bypass authentication (skip-auth-regex), the proxy forwards client-supplied identity headers (X-Forwarded-User, X-Forwarded-Email, X-Forwarded-Access-Token) to the upstream application without stripping them. An unauthenticated attacker can inject forged identity headers on whitelisted paths.
Title Openshift/oauth-proxy: openshift/oauth-proxy: unauthenticated identity header injection on whitelisted paths
First Time appeared Redhat
Redhat openshift
Weaknesses CWE-345
CPEs cpe:/a:redhat:openshift:4
Vendors & Products Redhat
Redhat openshift
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Aug 6, 2026, 2:20 PM
Reserved
May 29, 2026, 1:28 PM
Status
Awaiting Analysis
Published
Aug 5, 2026, 4:16 PM
Modified
Oct 24, 2026, 4:10 PM
Severity
Moderate
Public date
Aug 5, 2026, 2:12 PM