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CVE-2026-46579

7.4 · HIGH

A flaw was found in the OpenShift Router.

Published May 29, 2026CWE-287EPSS 0.62%

Overview

CVE-2026-46579 is a high-severity vulnerability. It was published on May 29, 2026 and has a CVSS 3.1 base score of 7.4 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.4, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refaccess.redhat.com/errata/RHSA-2026:27009Refaccess.redhat.com/errata/RHSA-2026:27044Refaccess.redhat.com/errata/RHSA-2026:27063Refaccess.redhat.com/errata/RHSA-2026:37580Refaccess.redhat.com/errata/RHSA-2026:40022Refaccess.redhat.com/errata/RHSA-2026:40828Refaccess.redhat.com/errata/RHSA-2026:43227Refaccess.redhat.com/errata/RHSA-2026:43253Refaccess.redhat.com/errata/RHSA-2026:43331Refaccess.redhat.com/errata/RHSA-2026:47703

How CyberStrike helps

Frequently asked questions

What is CVE-2026-46579?

CVE-2026-46579 is a high-severity vulnerability. It was published on May 29, 2026 and has a CVSS 3.1 base score of 7.4 (HIGH).

How severe is CVE-2026-46579?

This vulnerability has a CVSS 3.1 base score of 7.4, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-46579?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-46579?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-46579 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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