CVE-2026-5136: Red Hat Satellite

High severity, CVSS 8.8. EPSS: 0.6% chance of exploitation in the next 30 days.

A flaw was found in Foreman. The Usergroup model in Foreman does not properly validate role assignments against the calling user's permissions. This allows an authenticated user with usergroup management permissions to attach arbitrary roles, including administrative roles, to a user group and then add themselves as a member. Successful exploitation of this vulnerability leads to full privilege escalation, granting the attacker administrator-level access.

Affected products

• Red Hat Satellite: from 6.16, before 6.16.10 (fixed in 6.16.10); from 6.17, before 6.17.9 (fixed in 6.17.9); from 6.18, before 6.18.7 (fixed in 6.18.7); from 6.19, before 6.19.2 (fixed in 6.19.2)
• Theforeman Foreman: before 3.18.2 (fixed in 3.18.2); from 3.19.0, before 3.19.1 (fixed in 3.19.1)

Published 2026-07-01. Last modified 2026-07-09.