Openshift/router: openshift/router: mtls client certificate spoofing via unstripped x-ssl-client headers on http frontend_CVE-2026-46579

{
    "lastseen": "",
    "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.",
    "published": "2026-05-29T09:50:44.351Z",
    "modified": "2026-05-29T09:50:44.351Z",
    "type": "cve",
    "title": "Openshift/router: openshift/router: mtls client certificate spoofing via unstripped x-ssl-client headers on http frontend",
    "source": "redhat",
    "references": "https://access.redhat.com/security/cve/CVE-2026-46579\nhttps://bugzilla.redhat.com/show_bug.cgi?id=2483181",
    "id": "CVE-2026-46579",
    "bulletinFamily": "",
    "cwe": [
        "CWE-287"
    ],
    "cvelist": null,
    "sourceData": "",
    "sourceHref": "",
    "cvss": {
        "score": 7.4,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
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        "baseScore": 0,
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        "privilegesRequired": "",
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        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Red Hat OpenShift Container Platform 4",
    "version": "",
    "vendor": "Red Hat",
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    "ai_score": 0
}