CVE-2026-12423
Foreman: unauthenticated information disclosure via provisioning token validation flaw
- State
- Published
- Severity
- 7.5 High
- Published
- Oct 1, 2026
- Updated
- Oct 7, 2026
- Reserved
- Jun 16, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | redhat |
Weaknesses
- CWE-306 Missing Authentication for Critical Function
Affected Products
| Product | Versions |
|---|---|
Red Hat Satellite 6.16 for RHEL 8Red Hat |
|
Red Hat Satellite 6.16 for RHEL 9Red Hat |
|
Red Hat Satellite 6.17 for RHEL 9Red Hat |
|
Red Hat Satellite 6.18 for RHEL 9Red Hat |
|
Red Hat Satellite 6.19 for RHEL 9Red Hat |
|
Red Hat Satellite 6Red Hat |
References
- RHSA-2026:74503vendor-advisory
- RHSA-2026:74504vendor-advisory
- RHSA-2026:74505vendor-advisory
- RHSA-2026:74506vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-12423vdb-entry
- RHBZ#2488956issue-tracking
- http://www.openwall.com/lists/oss-security/2026/10/07/10
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