CVE-2026-12423

Summary

Foreman's unattended provisioning API endpoint allows attackers to bypass authentication by accessing kickstart templates without providing a valid provisioning token, even though the system only checks the database state of the token rather than its presence in the HTTP request.

Exploitability

Exploitation is straightforward as attackers can simply access the /unattended/provision endpoint without any token parameter, taking advantage of the semantic logic flaw that validates database state instead of actual request parameters.

Blast radius

The impact could be significant as attackers may gain access to sensitive kickstart templates and potentially automate provisioning workflows, leading to unauthorized system configurations and potential lateral movement within the infrastructure.

Detection

No reliable host or network indicator is derivable from the published description.

Prioritized remediation

Upgrade to Foreman 3.10 or later to address this authentication bypass vulnerability in the unattended/provision API endpoint.

Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.