Critical (9.8) in redhat satellite. EPSS 0.8% chance of exploitation in the next 30 days.
An authentication bypass vulnerability has been identified in Foreman when deployed with External Authentication, due to the puppet-foreman configuration. This issue arises from Apache's mod_proxy not properly unsetting headers because of restrictions on underscores in HTTP headers, allowing authentication through a malformed header. This flaw impacts all active Satellite deployments (6.13, 6.14 and 6.15) and could potentially enable unauthorized users to gain administrative access.
Severity
CVSS 3.1
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
0.8% chance of exploitation in the next 30 days; higher than 55% of CVEs (scores of 2026-10-31)