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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.

PUBLISHED Reserved 2026-05-28 | Published 2026-05-29 | Updated 2026-06-08 | Assigner redhat




HIGH: 7.4CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Problem types

Improper Authentication

Product status

Default status
affected

Default status
affected

Timeline

2026-04-17:Reported to Red Hat.
2026-04-17:Made public.

Credits

This issue was discovered by Ricardo Pchevuzinske Katz (Red Hat).

References

access.redhat.com/security/cve/CVE-2026-46579 vdb-entry

bugzilla.redhat.com/show_bug.cgi?id=2483181 (RHBZ#2483181) issue-tracking

cve.org (CVE-2026-46579)

nvd.nist.gov (CVE-2026-46579)

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