High8.1Red Hat Linux

High [CVE-2026-1531] Man-in-the-Middle due to insecure default SSL verification

This high-severity Red Hat Linux advisory covers CVE-2026-1531 affecting Red Hat Satellite 6.16 for RHEL 8, Red Hat Satellite 6.16 for RHEL 9, Red Hat Satellite 6.17 for RHEL 9.

CVE-2026-1531 Published Jan 28, 2026

CVE-2026-1531

Affected products & platforms

Red Hat LinuxUnclassified

Open vendor advisory

Android app · Google Play

Monitor future Red Hat Linux CVEs from your phone.

Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 32 official vendor sources and 160+ reviewed platform categories.

Matching phone alertsOptional email delivery

Get CVE alerts See app features

Summary

Man-in-the-Middle due to insecure default SSL verification. Red Hat rates this important (CVSS 8.1).

Weakness: CWE-295. Affected package(s): foreman, rubygem-katello, rubygem-foreman_kubevirt, rubygem-fog-kubevirt, python-pulp-container, python-pulp-rpm.

Resolved in Red Hat advisory RHSA-2026:5968 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: Red Hat Satellite 6.16 for RHEL 8; Red Hat Satellite 6.16 for RHEL 9; Red Hat Satellite 6.17 for RHEL 9; Red Hat Satellite 6.18 for RHEL 9.

Affected versions

foreman-0:3.14.0.14-1.el9sat
rubygem-katello-0:4.16.0.14-1.el9sat
rubygem-foreman_kubevirt-0:0.2.0-2.el9sat
rubygem-fog-kubevirt-0:1.5.1-1.el9sat
rubygem-foreman_kubevirt-0:0.2.0-2.el8sat
python-pulp-container-0:2.22.3-1.el9pc
python-pulp-rpm-0:3.27.10-2.el9pc
python-django-0:4.2.28-0.1.el9pc
rubygem-rubyipmi-0:0.13.0-1.el9sat
satellite-0:6.17.7-1.el9sat
libcomps-0:0.1.23-0.3.el9pc
python-brotli-0:1.2.0-0.1.el9pc

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions

RHSA-2026:5968

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Update the affected package(s) to the fixed version shipped in RHSA-2026:5968 (`sudo dnf update` / `yum update`).

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Discussion(0)

No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.