CVE-2026-46579
HIGH severity · CVSS 7.4 · Improper authentication
7.4CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactNone
Exploit probability (EPSS)0%
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://access.redhat.com/security/cve/CVE-2026-46579Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2483181Advisory
- https://access.redhat.com/errata/RHSA-2026:27009
- https://access.redhat.com/errata/RHSA-2026:27044
- https://access.redhat.com/errata/RHSA-2026:27063
- https://access.redhat.com/errata/RHSA-2026:37580