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Vulnerabilities CVE-2026-46579

CVE-2026-46579

High
Open
TLP:CLEAR

Openshift/router: openshift/router: mtls client certificate spoofing via unstripped x-ssl-client headers on http frontend

NVD CVE.org
Critical Infrastructure

AI Analysis

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Description

A flaw was found in the OpenShift Router. When a Route has `insecureEdgeTerminationPolicy` set to Allow, the HTTP frontend does not remove `X-SSL-Client-*` headers from incoming requests. This allows an unauthenticated attacker to send plain HTTP requests with crafted `X-SSL-Client-*` headers. As a result, backends relying on these headers for mutual TLS (Transport Layer Security) authentication can be bypassed, enabling the attacker to impersonate client certificate identities.

Details

CVSS Score
7.4
EPSS Score
0.35%

28.1th percentile

CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Confidence
90%
Published
May 29, 2026
Last Modified
Aug 11, 2026
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