Auth bypass in Red Hat Openshift Container Platform 4
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 pla…
Vulnerability class: Broken Authentication
EPSS: 0.002 (14.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Red Hat Openshift Container Platform 4
- Red Hat Openshift Container Platform 4.19 — versions 1783445642
- Red Hat Openshift Container Platform 4.2 — versions 1781639027
- Red Hat Openshift Container Platform 4.20 — versions 1781639027
- Red Hat Openshift Container Platform 4.21 — versions 1781552170
- Red Hat Openshift Container Platform 4.22 — versions 1781643967
- Redhat Openshift_container_platform — versions 4.0
- Redhat Openshift_router
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_REDHAT, vdb-entry, Vendor Advisory)
- RHBZ#2483181 (x_refsource_REDHAT, issue-tracking, Issue Tracking, Vendor Advisory)
- RHSA-2026:27044 (x_refsource_REDHAT, vendor-advisory)
- RHSA-2026:27063 (x_refsource_REDHAT, vendor-advisory)
- RHSA-2026:27009 (x_refsource_REDHAT, vendor-advisory)
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- RHSA-2026:37580 (x_refsource_REDHAT, vendor-advisory)
Frequently asked questions
- What is CVE-2026-46579?
- CVE-2026-46579 is a high-severity vulnerability in Red Hat Openshift Container Platform 4, classified under Improper Authentication. CVSS score: 7.4/10. Published 2026-05-29.
- How severe is CVE-2026-46579?
- High severity. CVSS v3 base score is 7.4 out of 10.