A flaw was found in Foreman. The Red Hat Satellite /unattended/provision API endpoint is vulnerable to an authentication bypass due to a semantic logic flaw in host_verifier.rb. The application verifies the database state of a provisioning token rather than its actual presence in the incoming HTTP request. Because a host actively undergoing provisioning has an unexpired token in the database, the server's valid_host_token? method evaluates to true, granting access to the kickstart template even if the requester provides no token at all in the URL.
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Fixes

Solution

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Workaround

Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.

History

Thu, 01 Oct 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 01 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
Description A flaw was found in Foreman. The Red Hat Satellite /unattended/provision API endpoint is vulnerable to an authentication bypass due to a semantic logic flaw in host_verifier.rb. The application verifies the database state of a provisioning token rather than its actual presence in the incoming HTTP request. Because a host actively undergoing provisioning has an unexpired token in the database, the server's valid_host_token? method evaluates to true, granting access to the kickstart template even if the requester provides no token at all in the URL.
Title Foreman: unauthenticated information disclosure via provisioning token validation flaw
First Time appeared Redhat
Redhat satellite
Redhat satellite Capsule
Redhat satellite Utils
Weaknesses CWE-306
CPEs cpe:/a:redhat:satellite:6
cpe:/a:redhat:satellite:6.19::el9
cpe:/a:redhat:satellite_capsule:6.19::el9
cpe:/a:redhat:satellite_utils:6.19::el9
Vendors & Products Redhat
Redhat satellite
Redhat satellite Capsule
Redhat satellite Utils
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-10-01T17:36:27.434Z

Reserved: 2026-06-16T16:57:36.339Z

Link: CVE-2026-12423

cve-icon Vulnrichment

Updated: 2026-10-01T17:36:24.766Z

cve-icon NVD

Status : Received

Published: 2026-10-01T17:17:19.887

Modified: 2026-10-01T18:17:14.853

Link: CVE-2026-12423

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-01T18:00:08Z

Weaknesses