Vulnerability Details CVE-2026-46579
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 14.2%
CVSS Severity
CVSS v3 Score 7.4
References
Products affected by CVE-2026-46579
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cpe:2.3:a:redhat:openshift_container_platform:4.0
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cpe:2.3:a:redhat:openshift_router:-