PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-1531 Red Hat CVE debrief

A flaw was found in foreman_kubevirt. When configuring the connection to OpenShift, the system disables SSL verification if a Certificate Authority (CA) certificate is not explicitly set. This insecure default allows a remote attacker, capable of intercepting network traffic between Satellite and OpenShift, to perform a Man-in-the-Middle (MITM) attack. Such an attack could lead to the disclosure or alteration of sensitive information. The CVE-2026-1531 vulnerability has a CVSS score of 8.1 and is considered HIGH severity. The vulnerability was published on 2026-02-02T06:16:20.790Z and last modified on 2026-06-30T03:17:18.133Z.

Vendor
Red Hat
Product
Red Hat Satellite 6.16 for RHEL 8
CVSS
HIGH 8.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-02-02
Original CVE updated
2026-06-30
Advisory published
2026-02-02
Advisory updated
2026-06-30

Who should care

Organizations using foreman_kubevirt and OpenShift should be aware of this vulnerability. Specifically, those with Satellite and OpenShift connections may be at risk if they have not explicitly set a CA certificate. Security teams and administrators responsible for configuring and maintaining these systems should prioritize assessment and remediation.

Technical summary

The foreman_kubevirt component has an insecure default behavior when connecting to OpenShift. If no Certificate Authority (CA) certificate is provided, SSL verification is disabled. This allows a remote attacker to intercept and potentially alter communications between Satellite and OpenShift. The vulnerability is characterized by a CVSS:3.1 vector of AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N, indicating a high severity with a score of 8.1. The CWE-295 weakness is associated with this vulnerability, relating to Improper Certificate Validation.

Defensive priority

High priority should be given to updating or configuring foreman_kubevirt to ensure proper SSL verification is in place when connecting to OpenShift. This involves explicitly setting a valid CA certificate to prevent Man-in-the-Middle attacks.

Recommended defensive actions

  • Update foreman_kubevirt to ensure proper SSL verification is enabled for OpenShift connections.
  • Configure a valid Certificate Authority (CA) certificate for foreman_kubevirt connections to OpenShift.
  • Review and update Satellite configurations to ensure secure communication with OpenShift.
  • Perform vulnerability scanning to identify affected systems.
  • Monitor network traffic for signs of potential Man-in-the-Middle attacks.

Evidence notes

The CVE-2026-1531 vulnerability was identified in foreman_kubevirt. The NVD provides detailed information about the vulnerability, including its CVSS score and vector. Red Hat has published errata and a security advisory related to this vulnerability (RHSA-2026:5968, RHSA-2026:5970, RHSA-2026:5971). A bugzilla entry (2433786) is also associated with this issue. The official CVE record and NVD detail pages provide comprehensive information about the vulnerability.

Official resources

This article is AI-assisted and based on the supplied source corpus.