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.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Affected products
References
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:27009
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:27044
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:27063
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:37580
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:40022
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:40828
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:43227
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:43253
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:43331
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:47703
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:47728
- VENDOR_ADVISORYhttps://access.redhat.com/security/cve/CVE-2026-46579
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=2483181
Updated 8m ago · 8 sources